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COMBINATION AGREEMENT

Stock Purchase Agreement

COMBINATION AGREEMENT
 | Document Parties: NYSE GROUP, INC. | EURONEXT N.V |  NYSE EURONEXT, INC |  JEFFERSON MERGER SUB, INC You are currently viewing:
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NYSE GROUP, INC. | EURONEXT N.V | NYSE EURONEXT, INC | JEFFERSON MERGER SUB, INC

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Title: COMBINATION AGREEMENT
Governing Law: Delaware     Date: 11/29/2006
Industry: Investment Services     Law Firm: Wachtell, Lipton, Rosen & Katz; Cleary Gottlieb Steen & Hamilton    

COMBINATION AGREEMENT
, Parties: nyse group  inc. , euronext n.v ,  nyse euronext  inc ,  jefferson merger sub  inc
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                                                                     EXHIBIT 2.1

                                                                  EXECUTION COPY





                             COMBINATION AGREEMENT


                                  by and among


                                NYSE GROUP, INC.


                                 EURONEXT N.V.


                              NYSE EURONEXT, INC.


                                      and

                           JEFFERSON MERGER SUB, INC.


                            Dated as of June 1, 2006


                  Amended and Restated as of November 24, 2006









<PAGE>

                               TABLE OF CONTENTS


                                                                             PAGE


                                   ARTICLE I

                                   THE OFFER


Section 1.1.    The Offer.......................................................3
Section 1.2.    Effect of the Offer on Euronext Stock Options...................8
Section 1.3.    Euronext Actions................................................8


                                   ARTICLE II

                                   THE MERGER


Section 2.1.    The Merger......................................................9
Section 2.2.    Closing.........................................................9
Section 2.3.    Effective Time.................................................10
Section 2.4.    Effect of the Merger on Common Stock...........................10
Section 2.5.    Effect of the Merger on Options and Awards.....................11
Section 2.6.    Delivery of Merger Consideration...............................12
Section 2.7.    Restructuring of the Merger....................................14


                                  ARTICLE III

                          POST-CLOSING REORGANIZATION


Section 3.1.    Post-Closing Reorganization....................................15
Section 3.2.    Effect of Post-Closing Reorganization on Euronext Stock
                  Options and Euronext Stock-Based Awards......................17
Section 3.3.    Cooperation of Euronext........................................19


                                   ARTICLE IV

             CORPORATE NAME; EXECUTIVE OFFICES; GOVERNING DOCUMENTS


Section 4.1.    Corporate Name and Executive Offices...........................20
Section 4.2.    Certificates of Incorporation..................................20
Section 4.3.    Bylaws.........................................................21

                                      -i-

<PAGE>

                                   ARTICLE V

              BOARD AND MANAGEMENT COMMITTEE AT THE EFFECTIVE TIME


Section 5.1.    Board of Directors of Holdco...................................22
Section 5.2.    Nominating and Governance Committee of the Holdco Board
                 of Directors.................................................22
Section 5.2.    Management Committee of Holdco at the Effective Time...........23


                                    ARTICLE VI

                         REPRESENTATIONS AND WARRANTIES


Section 6.1.    Representations and Warranties of NYSE Group...................23
Section 6.2.    Representations and Warranties of Euronext.....................34


                                   ARTICLE VII

                                   COVENANTS


Section 7.1.    Interim Operations.............................................44
Section 7.2.    Acquisition Proposals..........................................46
Section 7.3.    Stockholders Meetings..........................................49
Section 7.4.    Reasonable Best Efforts; Regulatory Filings and Other Actions..50
Section 7.5.    Access.........................................................53
Section 7.6.    Affiliates.....................................................54
Section 7.7.    Exchange Listing...............................................55
Section 7.8.    Publicity......................................................55
Section 7.9.    Taxation.......................................................55
Section 7.10.   Expenses.......................................................55
Section 7.11.   Indemnification; Directors' and Officers' Insurance............56
Section 7.12.   Other Actions by NYSE Group and Euronext.......................57


                                  ARTICLE VIII

                            CONDITIONS TO THE MERGER


Section 8.1.    Condition to NYSE Group's Obligation to Effect the Merger......58


                                    ARTICLE IX

                                  TERMINATION


Section 9.1.    Termination by Mutual Consent..................................58

                                      -ii-

<PAGE>

Section 9.2.    Termination by Either Euronext or NYSE Group...................58
Section 9.3.    Termination by NYSE Group......................................59
Section 9.4.    Termination by Euronext........................................59
Section 9.5.    Certain Additional Termination Rights..........................60
Section 9.6.    Effect of Termination and Abandonment; Expense Reimbursement...60


                                   ARTICLE X

                           MISCELLANEOUS AND GENERAL


Section 10.1.   Survival.......................................................62
Section 10.2.   Modification or Amendment......................................62
Section 10.3.   Waiver of Conditions...........................................63
Section 10.4.   Counterparts...................................................63
Section 10.5.   GOVERNING LAW AND VENUE; WAIVER OF JURY TRIAL..................63
Section 10.6.   Notices........................................................65
Section 10.7.   Entire Agreement...............................................66
Section 10.8.   No Third-Party Beneficiaries...................................66
Section 10.9.   Obligations of Euronext and of NYSE Group......................66
Section 10.10. Transfer Taxes.................................................66
Section 10.11. Definitions....................................................66
Section 10.12. Severability...................................................66
Section 10.13. Interpretation; Construction...................................66
Section 10.14. Assignment.....................................................67



Annex I    - Defined Terms
Annex II   - Conditions to the Filing and Commencement of the Offer
Annex III - Conditions to the Completion of the Offer

Exhibit A - Form of Amended and Restated Certificate of Incorporation of Holdco
Exhibit B - Form of Amended and Restated Bylaws of Holdco
Exhibit C - Knowledge of NYSE Group
Exhibit D - Knowledge of Euronext


                                     -iii-

<PAGE>


                   AMENDED AND RESTATED COMBINATION AGREEMENT


          This AMENDED AND RESTATED COMBINATION AGREEMENT (this "AGREEMENT"),
dated as of November 24, 2006 (the "EXECUTION DATE"), is by and among NYSE
Group, Inc., a Delaware corporation ("NYSE GROUP"), Euronext N.V., a company
organized under the laws of The Netherlands ("EURONEXT"), NYSE Euronext, Inc., a
Delaware corporation ("HOLDCO"), and Jefferson Merger Sub, Inc., a Delaware
corporation and a newly formed, wholly owned subsidiary of Holdco ("MERGER
SUB").

                                     RECITALS


          WHEREAS, NYSE Group, Euronext, Holdco and Merger Sub entered into that
certain Combination Agreement (the "ORIGINAL COMBINATION AGREEMENT"), dated as
of June 1, 2006 (the "ORIGINAL EXECUTION DATE"), pursuant to which NYSE Group
and Euronext agreed to effect a strategic combination of their businesses,
subject to the terms and conditions contained therein;

          WHEREAS, in furtherance thereof, the parties hereto agreed in the
Original Combination Agreement that, upon the terms and subject to the
conditions set forth in the Original Combination Agreement: (a) Holdco (or a
wholly owned Subsidiary of Holdco) shall make an offer (the "OFFER") to acquire
all of the issued and outstanding shares, nominal value (euro)6 per share, of
Euronext (the "EURONEXT SHARES"), for a combination of shares of common stock,
par value $0.01 per share, of Holdco ("HOLDCO COMMON STOCK") and cash; and (b)
concurrently with the purchase by Holdco (or a wholly owned Subsidiary of
Holdco) of the Euronext Shares pursuant to the Offer, Merger Sub shall merge
with NYSE Group, with the entity surviving the merger as a wholly owned
subsidiary of Holdco (the "MERGER"), and, in the Merger, each share of NYSE
Group Common Stock shall be converted into the right to receive one share of
Holdco Common Stock;

          WHEREAS, the parties also agreed in the Original Combination Agreement
that, prior to the consummation of the Offer and the Merger, Euronext would be
permitted to pay to the Euronext shareholders its previously announced special
distribution of (euro)3 per Euronext Share (the "SPECIAL EURONEXT
DISTRIBUTION"), which Special Euronext Distribution was paid on August 11, 2006;

          WHEREAS, the parties hereto desire to amend and restate the Original
Combination Agreement in the form of this Agreement in order to, among other
things: (a) increase the size of the Board of Directors of Holdco immediately
following the Effective Time from 20 to 22 members, with an even number of U.S.
Persons (as defined in the form of Amended and Restated Bylaws of Holdco
attached hereto) and European Persons (as defined in the form of Amended and
Restated Bylaws of Holdco attached hereto), which parity will be maintained
unless the Nominating and Governance Committee and the Board of Directors of
Holdco, both equally composed of U.S. Persons and European Persons, decide
otherwise; (b) increase the size of the Management Committee of Holdco
immediately following the Effective Time from 12 to 14 members;

<PAGE>


and (c) attach different forms of Amended and Restated Certificate of
Incorporation of Holdco and Amended and Restated Bylaws of Holdco;

          WHEREAS, the respective Boards of Directors of NYSE Group, Holdco and
Merger Sub have each determined that the Merger and the Offer and the other
transactions contemplated by this Agreement are consistent with, and will
further, the respective business strategies and goals of its company, and are in
the best interests of their respective company's stockholders and, therefore,
have (a) approved the Offer, the Merger, this Agreement and the transactions
contemplated by this Agreement and (b) recommended that the NYSE Group
stockholders approve and adopt this Agreement and the transactions contemplated
by this Agreement;

           WHEREAS, the Supervisory Board and the Managing Board of Euronext
(together, the "EURONEXT BOARDS") have each determined that the Merger and the
Offer and the other transactions contemplated by this Agreement are consistent
with, and will further, the business strategies and goals of Euronext, and are
in the best interests of Euronext, its shareholders, employees and other
stakeholders and, therefore, have (a) approved the Offer, the Merger, this
Agreement and the transactions contemplated by this Agreement and (b) adopted a
resolution recommending that the Euronext shareholders (i) approve this
Agreement and the transactions contemplated by this Agreement and (ii) accept
the Offer and tender their Euronext Shares in the Offer;

          WHEREAS, it is intended that, for U.S. federal income tax purposes,
the Merger shall qualify as a reorganization within the meaning of Section
368(a) of the Internal Revenue Code of 1986, as amended (the "CODE"), and this
Agreement shall constitute a "plan of reorganization";

          WHEREAS, consistent with the business strategies and goals of Holdco
as determined by its Board of Directors following the consummation of the Offer
and the Merger, it is the intention of the parties that (a) Holdco's
marketplaces will leverage the best of NYSE Group and Euronext's collective
technology sourced in an efficient manner to realize expected synergies of the
combination, (b) Holdco will continue to operate the horizontal business model
under which both NYSE Group and Euronext currently operate; (c) market
participants in each of the combined company's marketplaces will be regulated in
accordance with applicable local requirements; and (d) Holdco's management
committee will consist of an equal number of U.S. and non-U.S. members as
further described herein;

          WHEREAS, each of the parties hereto desires to make certain
representations, warranties, covenants and agreements in connection with this
Agreement; and

          WHEREAS, the parties intend that (a) all references in this Agreement
to "the date hereof" or "the date of this Agreement" shall refer to the Original
Execution Date; (b) the date on which the representations and warranties set
forth in Article VI are made by the applicable party shall not change as a
result of the execution of this

                                       -2-
<PAGE>


Agreement and shall be made as of such dates as they were in the Original
Combination Agreement; and (c) each reference to "this Agreement" or "herein" in
the representations and warranties set forth in Articles VI shall refer to "the
Original Combination Agreement" (unless, in each of cases (a), (b) and (c),
expressly indicated otherwise in this Agreement or where the context otherwise
requires).

          NOW, THEREFORE, in consideration of the premises, and of the
representations, warranties, covenants and agreements contained herein, the
parties hereto agree as follows:

                                   ARTICLE I

                                   THE OFFER

          Section 1.1. THE OFFER.

          (a) Provided that this Agreement shall not have been terminated in
accordance with Article IX, and subject to the prior satisfaction or waiver (if
and to the extent that such waiver is permitted by the GRAMF) of the conditions
set forth in Annex II hereto and Section 4.2(c), as promptly as practicable,
Holdco shall (or shall cause another direct or indirect wholly owned Subsidiary
of Holdco to) file the Offer with (i) the French Financial Market Authority
(AUTORITE DES MARCHES FINANCIERS) (the "AMF") within the meaning of the General
Rules of the AMF, as may be amended from time to time (the "GRAMF", which term
shall be deemed to include any other relevant rules, instructions and/or
recommendations of the AMF), and (ii) Belgian Banking, Finance, and Insurance
Commission (COMMISSION BANCAIRE, FINANCIERE, ET DES ASSURANCES) (the "CBFA").
Following approval by the AMF of the terms of the Offer, the Tender Offer
Prospectus filed by Holdco (NOTE D'INFORMATION) and the Tender Offer Prospectus
filed by Euronext (NOTE EN REPONSE), Holdco shall commence, within the meaning
of the GRAMF and the relevant Belgian regulations, the Offer to exchange each
Euronext Share for 0.98 of a share of Holdco Common Stock (the "STANDARD STOCK
AMOUNT") and (euro)21.32 in cash (the "STANDARD CASH AMOUNT" and, together with
the Standard Stock Amount, the "MIXED OFFER CONSIDERATION" (OFFRE MIXTE
PRINCIPALE)) with an option to receive in the Offer (including in any subsequent
offering period (PERIODE DE REOUVERTURE DE L'OFFRE)), in lieu of the Mixed Offer
Consideration, the Stock Election Consideration (in the OFFRE D'ECHANGE
SUBSIDIAIRE) or the Cash Election Consideration (in the OFFRE D'ACHAT
SUBSIDIAIRE), as each may be adjusted pursuant to this Section 1.1. In the event
that Holdco shall cause a Subsidiary of Holdco to file and commence the Offer,
each reference to Holdco in this Article I and ANNEXES II and III shall be
deemed, where applicable, to refer to such Subsidiary. For the avoidance of
doubt, none of the Mixed Offer Consideration, the Stock Election Consideration
or the Cash Election Consideration shall be reduced as a result of the payment
by Euronext of the Special Euronext Distribution.

          (b) Subject to Section 1.1(h), each Euronext Share accepted by Holdco
pursuant to the Offer (including during any subsequent offering period (PERIODE
DE REOUVERTURE DE L'OFFRE)) shall be exchanged for the right to receive from
Holdco the Mixed


                                       -3-
<PAGE>


Offer Consideration; PROVIDED that Holdco shall provide the Euronext
shareholders with a "mix and match election" in the Offer so that each holder of
Euronext Share may elect to receive in the Offer for each Euronext Share
tendered by such holder in the Offer, in lieu of the Mixed Offer Consideration,
either:

          (i) a number of shares of Holdco Common Stock (the "STOCK ELECTION
     AMOUNT") equal to the sum of (A) Standard Stock Amount and (B) the quotient
     obtained by dividing the Standard Cash Amount by the Pre-Offering Stock
     Price (such consideration, the "STOCK ELECTION CONSIDERATION" and persons
     who shall have tendered their Euronext Shares in this offer (OFFRE
     D'ECHANGE SUBSIDIAIRE) for the Stock Election Consideration are referred to
     as having made a "STOCK ELECTION"); or

          (ii) an amount in cash (the "CASH ELECTION AMOUNT"), without interest,
     equal to the sum of (A) the Standard Cash Amount and (B) the product
     obtained by multiplying the Standard Stock Amount by the Pre-Offering Stock
     Price (such consideration, the "CASH ELECTION CONSIDERATION" and persons
     who shall have tendered their Euronext Shares in this offer (OFFRE D'ACHAT
     SUBSIDIAIRE) for the Cash Election Consideration are referred to as having
     made a "CASH ELECTION").

          (c) For purposes of this Section 1.1:

          (i) the "CASH PERCENTAGE" means the quotient obtained by dividing (x)
     the Standard Cash Amount by (y) the sum of (A) the Standard Cash Amount and
      (B) the product obtained by multiplying the Pre-Offering Stock Price by the
     Standard Stock Amount;

          (ii) the "STOCK PERCENTAGE" means the fraction obtained by subtracting
     the Cash Percentage from one;

          (iii) the "RATIO" means the quotient obtained by dividing the Cash
     Percentage by the Stock Percentage;

          (iv) the "PRE-OFFERING STOCK PRICE" means the volume weighted average
     price of NYSE Group Common Stock on the New York Stock Exchange for the
     Pre-Offering Period, converted into euros using the average of the daily
     noon buying rates for euros, as published by the Federal Reserve Bank of
     New York, for the Pre-Offering Period; and

          (v) the "PRE-OFFERING PERIOD" means the ten (10) consecutive trading
     days ending on the day immediately prior to the filing of the Offer with
     the AMF pursuant to Section 1.1(a) or ending on such other date as mutually
     agreed between Euronext and NYSE Group.

          (d) Notwithstanding Section 1.1(b), in each of the initial period of
the Offer (the "INITIAL OFFERING PERIOD") and the subsequent offering period
(PERIODE DE REOUVERTURE DE L'OFFRE) (the "SUBSEQUENT OFFERING PERIOD" and
together with the Initial

                                        -4-
<PAGE>


Offering Period, the "OFFERING PERIODS" and each, an "OFFERING PERIOD"), the
number of Euronext Shares for which a Stock Election is made in any Offering
Period (the "STOCK ELECTION SHARES" FOR SUCH OFFERING PERIOD) and the number of
Euronext Shares for which a Cash Election shall be made in such Offering Period
(the "CASH ELECTION SHARES" FOR SUCH OFFERING PERIOD) shall be subject to an
adjustment mechanism designed to ensure that, in the aggregate, the quotient
obtained by dividing the Cash Election Shares for such Offering Period by the
Stock Election Shares for such Offering Period shall equal the Ratio. If the
Cash Election Shares for any Offering Period, divided by the Stock Election
Shares for such Offering Period is not equal to the Ratio, then one of the
following pro-ration and allocation adjustments shall occur for such Offering
Period:

          (i) If the quotient obtained by dividing the Cash Election Shares for
     such Offering Period by the Stock Election Shares for such Offering Period
     exceeds the Ratio, then (A) each holder of a Stock Election Share for such
     Offering Period shall receive in the Offer the Stock Election Consideration
     in respect of such Stock Election Share, and (B) the number of Cash
     Election Shares for such Offering Period shall be reduced to the number
     required to achieve the Ratio (with such reduction to be pro rata among the
     holders of Euronext Shares who have made the Cash Election in such Offering
     Period, based on the number of Euronext Shares for which they have made the
     Cash Election in such Offering Period). The adjusted number of Cash
     Election Shares for such Offering Period shall be rounded down to the
     nearest whole Cash Election Share. All Euronext Shares deemed not to be
     Cash Election Shares as a result of this pro-ration and allocation shall
     not be deemed to be Cash Election Shares or Stock Election Shares and shall
     receive the Mixed Offer Consideration.

          (ii) If the quotient obtained by dividing the Cash Election Shares for
     such Offering Period by the Stock Election Shares for such Offering Period
     is less than the Ratio, then (A) each holder of a Cash Election Share for
     such Offering Period shall receive in the Offer the Cash Election
     Consideration in respect of such Cash Election Share, and (B) the number of
     Stock Election Shares for such Offering Period shall be reduced to the
     number required to achieve the Ratio (with such reduction to be pro rata
     among the holders of Euronext Shares who have made the Stock Election in
     such Offering Period, based on the number of Euronext Shares for which they
     have made the Stock Election in such Offering Period). The adjusted number
     of Stock Election Shares for such Offering Period shall be rounded down to
     the nearest whole Stock Election Share. All Euronext Shares deemed not to
     be Stock Election Shares as a result of this pro-ration and allocation
     shall not be deemed to be Cash Election Shares or Stock Election Shares and
     shall receive the Mixed Offer Consideration.

          (e) After the filing and commencement of the Offer as set forth in
Section 1.1(a), Holdco's obligation to accept for exchange or payment, and to
exchange or pay for, any Euronext Shares validly tendered and not withdrawn
prior to the expiration of the Offer (as it may be extended in accordance with
applicable Laws, the "EXPIRATION TIME") shall be subject only to the
satisfaction or waiver of the conditions set forth in


                                       -5-
<PAGE>

ANNEX III, including the condition that there shall be validly tendered in
accordance with the terms of the Offer prior to the Expiration Time and not
withdrawn, in each case in accordance with applicable Laws, a number of Euronext
Shares that represents at least two-thirds of the outstanding Euronext Shares as
of the closing of the Offer, as it may be extended by Holdco in accordance with
applicable Laws (the "MINIMUM CONDITION"); PROVIDED, HOWEVER, that, after
consultation with Euronext, Holdco may, prior to the filing of the Offer with
the AMF, change the Minimum Condition so that it is a number of Euronext Shares
that represents not less than a majority of the Euronext Shares and not less
than a majority of the Euronext voting power, in each case outstanding on a
Fully Diluted Basis as of the closing of the Offer, as it may be extended by
Holdco in accordance with applicable Laws. As used in this Agreement, "FULLY
DILUTED BASIS" means, as of any particular time, the number of Euronext Shares
issued and outstanding at such time after taking into account all Euronext
Shares issuable upon the conversion of Euronext's convertible securities or upon
the exercise of any options, warrants or rights to purchase or subscribe for
shares of the capital stock of Euronext.

          (f) Provided that this Agreement shall not have been earlier
terminated in accordance with Article IX, and subject to the prior satisfaction
or waiver of the conditions set forth in ANNEX III in accordance with the terms
of ANNEX III, Holdco shall promptly consummate the Offer in accordance with its
terms and applicable Law, and accept for exchange and payment, and exchange and
pay for, all Euronext Shares tendered and not withdrawn in accordance with
applicable Law, promptly following the acceptance of Euronext Shares for
exchange and payment pursuant to the Offer. Holdco expressly reserves the right
to increase the Standard Stock Amount and/or the Standard Cash Amount; PROVIDED
that any such increase shall be reflected in the Offer Documents or any
amendment thereof and filed with the SEC, the AMF and the CBFA, in each case as
required by applicable Law.

          (g) As promptly as practicable after the date of this Agreement, NYSE
Group and Holdco shall prepare, and Holdco shall file with the U.S. Securities
and Exchange Commission (the "SEC"), a registration statement on Form S-4
(together with any supplements or amendments thereto, the "REGISTRATION
STATEMENT") to register the offer and sale of Holdco Common Stock pursuant to
the Offer and the Merger. The Registration Statement will include (1) a proxy
statement/prospectus (the "PROXY STATEMENT/PROSPECTUS") to be used for the NYSE
Group Stockholders Meeting to approve and adopt this Agreement and the Merger
and to approve certain aspects of the Holdco certificate of incorporation that
will be in effect after the Merger; (2) a shareholder circular/prospectus (the
"SHAREHOLDER CIRCULAR/PROSPECTUS") to be used for the Euronext Stockholders
Meeting to approve this Agreement and the transactions contemplated by this
Agreement and (3) a prospectus to be used as a prospectus sent to U.S. holders
of Euronext Shares for the Offer (the "OFFER PROSPECTUS" and together with the
Proxy Statement/Prospectus and the Shareholder Circular/Prospectus, the "S-4
PROSPECTUSES"); PROVIDED that, at its option, NYSE Group may file the proxy
statement to be used for the NYSE Group Stockholders Meeting separately from the
Registration Statement. In addition, as promptly as practicable after the date
of this Agreement, NYSE Group, Euronext and Holdco shall prepare, and Holdco
shall file with the AMF a Share


                                       -6-
<PAGE>

Registration Document (DOCUMENT DE BASE) for the Offer in the form provided by
Commission Regulation (EC) No. 809/2004 of April 2004 as implemented by the
GRAMF (the "HOLDCO SHARE REGISTRATION DOCUMENT"). As soon as practicable after
the satisfaction or waiver (if and to the extent that such waiver is permitted
by the GRAMF) of the conditions set forth in ANNEX II, (i) each of Holdco and
Euronext shall file with the AMF and the CBFA a Tender Offer Prospectus (NOTE
D'INFORMATION and NOTE EN REPONSE, respectively) in accordance with the GRAMF
and applicable Belgian regulations (it being agreed that the Tender Offer
Prospectus filed by Euronext shall include, if and to the extent required, a
fairness opinion (ATTESTATION D'EQUITE) delivered by an independent expert in
accordance with Articles 261-1 ET SEQ. of the GRAMF) and the related letter of
transmittal form and other ancillary documents with respect to the Offer
(together with all amendments, supplements and exhibits thereto and the Holdco
Share Registration Document and any update of the presentation of Euronext for
purposes of the Offer, the "EUROPEAN EXCHANGE OFFER DOCUMENTS"), and (ii) Holdco
shall file with the SEC a prospectus pursuant to Rule 424 under the U.S.
Securities Act of 1933, as amended (the "SECURITIES ACT"), that will contain or
incorporate by reference all or part of the Offer Prospectus and the related
letter of transmittal form and all other ancillary documents with respect to the
Offer (together with all amendments, supplements and exhibits thereto, the
"PROSPECTUS") (the Prospectus, the Registration Statement and such documents
included therein pursuant to which the Offer will be made, together with any
amendments and supplements thereto, the "U.S. EXCHANGE OFFER DOCUMENTS" and,
together with the European Exchange Offer Documents, the "OFFER DOCUMENTS"). The
parties hereto agree to take all steps necessary to cause the Registration
Statement, the Share Registration Document, the European Exchange Offer
Documents and the U.S. Exchange Offer Documents to be filed with the SEC, the
AMF and the CBFA, as applicable, and disseminated to holders of NYSE Group
Common Stock and Euronext Shares, as applicable, as and to the extent required
by applicable Law. The parties agree to correct promptly any information
provided by it for use in the Offer Documents if and to the extent that such
information shall have become false or misleading in any material respect or as
otherwise required by Law. The parties further agree to take all steps necessary
to cause the Offer Documents, as so corrected, to be filed with the SEC, the AMF
and the CBFA and disseminated to holders of NYSE Group Stock and Euronext
Shares, as applicable, in each case as and to the extent required by applicable
Law.

          (h) Notwithstanding any other provision of this Agreement, no
fractional shares of Holdco Common Stock will be issued to the Euronext
Shareholders in the Offer. Any tendering holder who would be entitled to receive
a fractional share of Holdco Common Stock but for this Section 1.1(h) shall
instead receive a cash payment representing such holder's proportionate interest
in the net proceeds from the sale on a regulated market for the account of the
tendering shareholders of the aggregate fractional shares of Holdco Common Stock
that the tendering holders otherwise would have received. Any such sale shall be
made within ten (10) business days or such shorter period as may be required by
applicable Law after the settlement of the Offer by an agent designated by
Holdco. In no event will interest be paid on the cash to be received in lieu of
any fraction of a share of Holdco Common Stock.


                                       -7-
<PAGE>


          (i) NYSE Group and Euronext may agree to split the Offer into two or
more separate exchange offers, including a separate U.S. offer and a non-U.S.
offer. If the Offer shall be split into multiple exchange offers, each reference
to the "Offer" set forth in this Agreement and the Annexes hereto shall refer to
each of these separate offers unless the context otherwise requires. NYSE Group
and Euronext agree that the Offer filed with the AMF and the CBFA shall be
treated as one Offer (including for purposes of bidding procedure and timing),
and that all Euronext Shares tendered in the Offer filed with the AMF and CBFA
shall be treated as Euronext Shares having been tendered in a single Offer for
purposes of determining whether the Minimum Condition has been satisfied and for
purposes of determining proration and allocation.

          (j) Except to the extent prohibited by applicable Law, Holdco shall be
entitled to deduct and withhold, or cause the Exchange Agent to deduct and
withhold, from the Mixed Offer Consideration, Stock Election Consideration and
Cash Election Consideration payable to any tendering holder of Euronext Shares
such amounts as it is required to deduct and withhold with respect to the making
of such payment under the Code and the rules and regulations promulgated
thereunder, or any provision of state, local or non-U.S. tax law. To the extent
that amounts are so withheld by or on behalf of Holdco, as the case may be, such
withheld amounts shall be treated for all purposes of this Agreement as having
been paid to the holder of the Euronext Shares in respect of which such
deduction and withholding was made.

          (k) If Holdco and Euronext have reasonably estimated prior to the
filing of the Offer with the AMF that the aggregate cost of all stamp duty that
may be due under article 978 of the French tax code in connection with the Offer
shall be (euro)500,000 or less, then Holdco shall bear such aggregate cost in
connection with the Offer, and such Holdco undertaking shall be set forth in the
Tender Offer Prospectus filed by Holdco (NOTE D'INFORMATION).

          Section 1.2. EFFECT OF THE OFFER ON EURONEXT STOCK OPTIONS. Unless
NYSE Group and Euronext agree otherwise and subject to applicable Law, the Offer
shall not include any outstanding option to purchase Euronext Shares, but, in
accordance with the GRAMF, shall include any Euronext Share that is purchased or
subscribed for as a result of the exercise of any such option prior to the
Expiration Time.

          Section 1.3. EURONEXT ACTIONS.

          (a) In connection with the Offer, Euronext shall use reasonable best
efforts, to the extent consistent with applicable Law, to promptly furnish or
cause to be furnished to Holdco mailing labels, security position listings and
all available listings and computer files containing the names and addresses of
the record and beneficial holders of the Euronext Shares, in each case as of the
most recent practicable date, to facilitate the transmission of the Offer, and
to promptly furnish Holdco with such additional information and assistance
(including, but not limited to, lists of holders of Euronext Shares, updated
periodically, and their addresses, mailing labels and lists of security
positions) as Holdco or its agent(s) may reasonably request for the purpose of
communicating the Offer to the

                                       -8-
<PAGE>

record and beneficial holders of Euronext Shares, it being understood that the
majority of the Euronext Shares are registered in the name of Euroclear France.

          (b) Euronext hereby approves of, and consents to, the Offer and the
Merger and represents and warrants that the Euronext Boards, at meetings duly
called and held, have (i) received an opinion from their financial advisors,
Morgan Stanley International and ABN AMRO, to the effect that the consideration
to be received by holders of Euronext Shares who tender their Euronext Shares in
the Offer is fair from a financial point of view to the Euronext shareholders,
(ii) determined that this Agreement and the transactions contemplated hereby,
including the Offer and the Merger, are advisable and are fair to and in the
best interests of Euronext, its shareholders and employees and other
stakeholders; (iii) approved this Agreement and the transactions contemplated
hereby, including the Offer and the Merger; and (iv) adopted a resolution
recommending that the Euronext shareholders approve this Agreement and the
transactions contemplated by this Agreement and accept the Offer and tender
their Euronext Shares in the Offer (the recommendation referred to in this
clause (iv) is referred to as the "EURONEXT RECOMMENDATION"). Euronext hereby
consents to the inclusion in the Offer Documents of the Euronext Recommendation
and approval of the Euronext Boards described in the immediately preceding
sentence, and Euronext shall not permit the Euronext Recommendation and approval
of the Euronext Boards or any component thereof to be modified in any manner
adverse to NYSE Group or Holdco or to be withdrawn by the Euronext Boards or any
committee thereof, except as provided, and only to the extent set forth, in
Section 7.2.

                                    ARTICLE II

                                   THE MERGER

          Section 2.1. THE MERGER. Upon the terms and subject to the conditions
set forth in this Agreement, at the Effective Time, the Merger shall occur
pursuant to which NYSE Group shall merge with and into Merger Sub, and the
separate corporate existence of NYSE Group shall thereupon cease. Merger Sub
shall be the surviving corporation in the Merger (the "SURVIVING CORPORATION"),
shall be renamed "NYSE Group, Inc.", and shall continue its existence under the
laws of the State of Delaware, with all its rights, privileges, immunities,
powers and franchises. After the Merger, the Surviving Corporation shall be a
wholly owned subsidiary of Holdco. The Merger shall have the effects specified
in the Delaware General Corporation Law, as amended (the "DGCL").

          Section 2.2. CLOSING. The closing of the Merger (the "CLOSING") shall
take place at the offices of Wachtell, Lipton, Rosen & Katz, 51 West 52nd
Street, New York, New York 10019, at 10:00 a.m., New York time, on the date (the
"CLOSING DATE") on which the condition set forth in Article VIII shall be
satisfied or waived (subject to applicable Law), unless another date, time or
place is agreed to by NYSE Group and Euronext.


                                       -9-
<PAGE>


          Section 2.3. EFFECTIVE TIME.

          (a) As soon as practicable following the satisfaction or waiver
(subject to applicable Law) of the condition set forth in Article VIII, on the
Closing Date, NYSE Group and Merger Sub shall file a certificate of merger
relating to the Merger (the "CERTIFICATE OF MERGER") with the Secretary of State
of Delaware, in such form as is required by and executed and acknowledged in
accordance with the relevant provisions of the DGCL, and make all other filings
or recordings required under the DGCL.

          (b) The Merger shall become effective at (i) the date and time on
which the Certificate of Merger is duly filed with the Secretary of State of
Delaware as required to effect the Merger, or (ii) such subsequent date and time
as NYSE Group and Euronext shall agree and as shall be specified in the
Certificate of Merger (such time that the Merger shall become effective being
the "EFFECTIVE TIME").

           Section 2.4. EFFECT OF THE MERGER ON COMMON STOCK.

          (a) As a result of the Merger and without any action on the part of
the holder of any capital stock of NYSE Group or Merger Sub, at the Effective
Time:

          (i) each share of NYSE Group Common Stock issued and outstanding
     immediately prior to the Effective Time (other than any share of NYSE Group
     Common Stock owned by NYSE Group or Merger Sub and in each case not held on
     behalf of third parties (each, an "EXCLUDED SHARE")) shall automatically be
     converted into the right to receive one fully paid and nonassessable share
     of Holdco Common Stock (the "MERGER CONSIDERATION");

          (ii) each Excluded Share shall cease to be outstanding, shall be
     cancelled and retired without payment of any consideration therefor and
     shall cease to exist; and

          (iii) each share of common stock, par value $0.01 per share, of Merger
     Sub (each, a "MERGER SUB COMMON STOCK") issued and outstanding immediately
     prior to the Effective Time shall be converted into one fully paid and
     nonassessable share of common stock, par value $0.01 per share, of the
     Surviving Corporation, and the Surviving Corporation shall be a wholly
     owned subsidiary of Holdco.

          (b) From and after the Effective Time, no NYSE Group Common Stock
shall remain outstanding and all NYSE Group Common Stock shall be cancelled and
retired and shall cease to exist. Each entry in the records of NYSE Group or its
transfer agent formerly representing shares of NYSE Group Common Stock (the
"BOOK-ENTRY INTERESTS") shall thereafter represent only the right to receive the
Merger Consideration and any distribution or dividend pursuant to Section
2.6(d).

          (c) With respect to any share of NYSE Group Common Stock whose
transfer was restricted as of immediately prior to the Effective Time pursuant
to the Amended and Restated Certificate of Incorporation of NYSE Group (each, a
"RESTRICTED


                                       -10-
<PAGE>

SHARE"), each share of Holdco Common Stock issued in the Merger in respect of
such Restricted Share shall continue to be restricted, on the same terms and
conditions as were applicable to the Restricted Share immediately prior to the
Effective Time except that references to NYSE Group shall be to Holdco. Such
restrictions on transfer shall be set forth in the New Holdco Charter.

          (d) In accordance with Section 262 of the DGCL, no appraisal rights
shall be available to holders of NYSE Group Common Stock in connection with the
Merger.

          Section 2.5. EFFECT OF THE MERGER ON OPTIONS AND AWARDS.

          (a) Each option to purchase shares of NYSE Group Common Stock (a
"NYSE GROUP STOCK OPTION") granted under the employee and director stock plans
of NYSE Group (the "NYSE GROUP STOCK PLANS"), whether vested or unvested, that
is outstanding immediately prior to the Effective Time shall cease to represent
a right to acquire shares of NYSE Group Common Stock and shall be converted, at
the Effective Time, into a Holdco Stock Option on the same terms and conditions
as were applicable under such NYSE Group Stock Option. The number of shares of
Holdco Common Stock subject to each such Holdco Stock Option shall be equal to
the number of shares of NYSE Group Common Stock subject to each such NYSE Group
Stock Option and such Holdco Stock Option shall have an exercise price per share
equal to the per share exercise price specified in such NYSE Group Stock Option.

          (b) At the Effective Time, each restricted stock unit or deferred
stock unit measured in shares of NYSE Group Common Stock (each, a "NYSE GROUP
STOCK-BASED AWARD"), whether vested or unvested, which is outstanding
immediately prior to the Effective Time shall cease to represent a restricted
stock unit or deferred stock unit with respect to shares of NYSE Group Common
Stock and shall be converted, at the Effective Time, into a Holdco Stock-Based
Award, on the same terms and conditions as were applicable under the NYSE Group
Stock-Based Awards. The number of shares of Holdco Common Stock subject to each
such Holdco Stock-Based Award shall be equal to the number of shares of NYSE
Group Common Stock subject to the NYSE Group Stock-Based Award. All dividend
equivalents credited to the account of each holder of a NYSE Group Stock-Based
Award as of the Effective Time shall remain credited to such holder's account
immediately following the Effective Time, subject to adjustment in accordance
with the foregoing.

          (c) As soon as practicable after the Effective Time, Holdco shall
deliver to the holders of NYSE Group Stock Options and NYSE Group Stock-Based
Awards appropriate notices setting forth such holders' rights pursuant to the
respective NYSE Group Stock Plans and agreements evidencing the grants of such
NYSE Group Stock Options and NYSE Group Stock-Based Awards and stating that such
NYSE Group Stock Options and NYSE Group Stock-Based Awards and agreements have
been assumed by Holdco and shall continue in effect on the same terms and
conditions (subject to the


                                       -11-
<PAGE>

adjustments required by this Section 2.5 after giving effect to the Merger and
the terms of the NYSE Group Stock Plans).

          (d) Prior to the Effective Time, NYSE Group shall take all necessary
action for the adjustment of NYSE Group Stock Options and NYSE Group Stock-Based
Awards under this Section 2.5. Holdco shall reserve for issuance a number of
shares of Holdco Common Stock at least equal to the number of shares of Holdco
Common Stock that will be subject to Holdco Stock Options and Holdco Stock-Based
Awards or the Equity Arrangements as a result of the actions contemplated by
this Section 2.5 and Section 3.2. As soon as practicable following the Effective
Time, Holdco shall file a registration statement on Form S-8 (or any successor
form, or if Form S-8 is not available, other appropriate forms) with respect to
the shares of Holdco Common Stock subject to such Holdco Stock Options and
Holdco Stock-Based Awards and shall maintain the effectiveness of such
registration statement or registration statements (and maintain the current
status of the prospectus or prospectuses contained therein) for so long as such
Holdco Stock Options and Holdco Stock-Based Awards remain outstanding.

          Section 2.6. DELIVERY OF MERGER CONSIDERATION.

          (a) EXCHANGE AGENT. Prior to the Effective Time, NYSE Group shall
appoint a commercial bank or trust company, or a subsidiary thereof, to act as
exchange agent hereunder (the "EXCHANGE AGENT"). On or prior to the Effective
Time, (i) Holdco shall deposit, or cause to be deposited, with the Exchange
Agent, for the benefit of holders of record of shares of NYSE Group Common Stock
as of immediately prior to the Effective Time, shares of Holdco Common Stock
issuable pursuant to Section 2.4 in exchange for outstanding shares of NYSE
Group Common Stock upon delivery to the Exchange Agent of instructions for use
in effecting the transfer and cancellation of Book-Entry Interests in exchange
for the applicable Merger Consideration pursuant to the provisions of Article II
(such shares of Holdco Common Stock being hereinafter referred to as the
"EXCHANGE FUND").

          (b) MERGER TRANSMITTAL LETTER. NYSE Group and Holdco shall cause
appropriate transmittal materials (the "MERGER TRANSMITTAL LETTER"), to be
provided by the Exchange Agent to holders of record of shares of NYSE Group
Common Stock as soon as practicable after the Effective Time advising such
holders of the effectiveness of the Merger and the procedure for providing
instructions to the Exchange Agent to effect the transfer and cancellation of
Book-Entry Interests in exchange for the Merger Consideration.

          (c) After the Effective Time, and upon delivery to the Exchange Agent
of instructions authorizing transfer and cancellation of Book-Entry Interests in
accordance with the terms of the Merger Transmittal Letter, the holder of such
Book-Entry Interests shall be entitled to receive in exchange therefor a number
of shares of Holdco Common Stock in respect of the aggregate Merger
Consideration that such holder is entitled to receive pursuant to Section 2.4
(after taking into account all shares of NYSE Group Common Stock then held by
such holder), and the Book-Entry Interests that are the subject


                                       -12-
<PAGE>

of such authorization shall forthwith be cancelled. No interest will be paid or
accrued on any amount payable upon such transfer and cancellation of any
Book-Entry Interests. In the event of a transfer of ownership of NYSE Group
Common Stock that is not registered in the transfer records of NYSE Group, the
proper number of shares of Holdco Common Stock may be issued to such a
transferee if written instructions authorizing the transfer of any Book-Entry
Interests are presented to the Exchange Agent, in any case, accompanied by all
documents required to evidence and effect such transfer and to evidence that any
applicable stock transfer Taxes have been paid. If any shares of Holdco Common
Stock to be issued in a name other than that in which any Book-Entry Interests
are registered, it shall be a condition of such exchange that the Person
requesting such exchange shall pay any transfer or other Taxes required by
reason of the issuance of shares of Holdco Common Stock in a name other than
that of the registered holder of any Book-Entry Interests, or shall establish to
the satisfaction of Holdco or the Exchange Agent that such Tax has been paid or
is not applicable. For the purposes of this Agreement, the term "PERSON" means
any individual, corporation (including not-for-profit), general or limited
partnership, limited liability company, joint venture, estate, trust,
association, organization, Governmental Entity or Self-Regulatory Organization
or other entity of any kind or nature. "SELF-REGULATORY ORGANIZATION" means any
U.S. or non-U.S. commission, board, agency or body that is not a Governmental
Entity but is charged with the supervision or regulation of brokers, dealers,
securities underwriting or trading, stock exchanges, commodities exchanges,
electronic communication networks (ECNs), insurance companies or agents,
investment companies or investment advisers.

          (d) DISTRIBUTIONS WITH RESPECT TO UNEXCHANGED SHARES; VOTING. All
shares of Holdco Common Stock to be issued pursuant to the Merger shall be
deemed issued and outstanding as of the Effective Time and whenever a dividend
or other distribution is declared by Holdco in respect of Holdco Common Stock,
the record date for which is at or after the Effective Time, that declaration
shall include dividends or other distributions in respect of all shares issuable
pursuant to this Agreement. No dividends or other distributions in respect of
the Holdco Common Stock shall be paid to any holder of any Book-Entry Interests
until the instructions for transfer and cancellation provided in this Article II
have been delivered to the Exchange Agent. Subject to the effect of applicable
Laws, following delivery to the Exchange Agent of such instructions with respect
to Book-Entry Interests, there shall be issued to the holder of the shares of
Holdco Common Stock issued in exchange therefor, without interest, (A) at the
time of such surrender or delivery of such instructions, the dividends or other
distributions with a record date after the Effective Time theretofore payable
with respect to such Holdco Common Stock and not paid and (B) at the appropriate
payment date, the dividends or other distributions payable with respect to such
shares of Holdco Common Stock with a record date after the Effective Time but
with a payment date subsequent to surrender.

          (e) TRANSFERS. At or after the Effective Time, there shall be no
transfers on the stock transfer books of NYSE Group of NYSE Group Common Stock
that were outstanding immediately prior to the Effective Time.


                                       -13-
<PAGE>


          (f) FRACTIONAL SHARES. No fractional shares of Holdco Common Stock
will be issued in the Merger to any holder of shares of NYSE Group Common Stock.

          (g) TERMINATION OF EXCHANGE FUND. Any portion of the Exchange Fund
(including any Holdco Common Stock) that remains unclaimed by the former
stockholders of NYSE Group for 180 days after the Effective Time shall be
delivered to Holdco. Any former stockholders of NYSE Group who have not
theretofore complied with this Article II shall thereafter look only to Holdco
for delivery of any shares of Holdco Common Stock of such stockholders and
payment of any dividends and other distributions in respect of Holdco Common
Stock of such stockholders payable and/or issuable pursuant to this Article II
upon delivery to the Exchange Agent of written instructions for the transfer and
cancellation of any Book-Entry Interests, in each case, without any interest
thereon. Notwithstanding the foregoing, none of Holdco, NYSE Group, Merger Sub,
any surviving entity in the Merger, the Exchange Agent or any other Person shall
be liable to any former holder of NYSE Group Common Stock for any amount
properly delivered to a public official pursuant to applicable abandoned
property, escheat or similar Laws.

          (h) WITHHOLDING RIGHTS. Holdco shall be entitled to deduct and
withhold, or to cause the Exchange Agent to deduct and withhold, from any
consideration payable pursuant to the Merger to any Person who was a holder of
NYSE Group Common Stock, NYSE Group Stock Option or NYSE Group Stock-Based Award
immediately prior to the Effective Time such amounts as it is required to deduct
and withhold with respect to the making of such payment under the Code and the
rules and regulations promulgated thereunder, or any provision of state, local
or non-U.S. tax law. To the extent that amounts are so withheld by Holdco or the
Exchange Agent, as the case may be, such withheld amounts shall be treated for
all purposes of this Agreement as having been paid to the holder of the NYSE
Group Common Stock, NYSE Group Stock Option or NYSE Group Stock-Based Award, as
the case may be, in respect of which such deduction and withholding was made.

          Section 2.7. RESTRUCTURING OF THE MERGER. The parties hereto hereby
agree and acknowledge that, with the prior consent of Euronext (which consent
shall not be unreasonably withheld), NYSE Group may restructure the Merger;
PROVIDED that such restructuring shall not (i) reduce or change the form of the
Mixed Offer Consideration, the Stock Election Consideration or the Cash Election
Consideration, (ii) materially delay or prevent consummation of the transactions
contemplated by this Agreement, or (iii) prevent or materially impede the
qualification of the Merger as a reorganization within the meaning of Section
368(a) of the Code.


                                       -14-
<PAGE>


                                  ARTICLE III

                          POST-CLOSING REORGANIZATION

          Section 3.1. POST-CLOSING REORGANIZATION.

          (a) Holdco intends, simultaneously with or as soon as possible after
the Closing, to effectuate a corporate reorganization (the "POST-CLOSING
REORGANIZATION") of certain Subsidiaries of Holdco (including Euronext and its
Subsidiaries). The Post-Closing Reorganization may include any of the following
(each of the following, a "PRE-APPROVED POST-CLOSING REORGANIZATION"), each of
which has been, to the extent required, approved by the Euronext Boards:

          (i) if 95% or more of the outstanding Euronext Shares shall have been
     acquired in the Offer, Holdco (or a direct or indirect wholly owned
     Subsidiary of Holdco) may commence a compulsory acquisition of Euronext
     Shares from any remaining minority shareholder in accordance with Section
     2:92a of the Dutch Civil Code and/or an acquisition of Euronext Shares from
     any remaining minority shareholder in accordance with Articles 236-1 ET
     SEQ. of the GRAMF;

          (ii) if less than 95% of the outstanding Euronext Shares shall have
     been acquired in the Offer:

               (A) if the Euronext Shares have been acquired by Holdco, Holdco
          may transfer the Euronext Shares immediately following the
          consummation of the Offer to a newly formed, direct or indirect wholly
          owned Dutch Subsidiary of Holdco ("DUTCH HOLDCO") in exchange for
          shares of Dutch Holdco; and

                (B) Euronext may, and Holdco may cause Euronext to, transfer all
          of its assets and liabilities to a newly formed, wholly owned Dutch
          Subsidiary of Euronext ("EURONEXT SUB") in exchange for shares of
          Euronext Sub or by way of a legal demerger; and

               (C) Euronext may, and Holdco may cause Euronext to, transfer the
          shares in Euronext Sub to Dutch Holdco in exchange for shares of
          Holdco Common Stock and cash and, then, cause Euronext to distribute
          such shares of Holdco Common Stock and cash to its shareholders in a
          complete liquidation of Euronext. To the extent that a liquidating
          distribution would be made to Dutch Holdco, Dutch Holdco may
          substitute a promissory note for the portion of the consideration
          payable for the Euronext Sub shares, which promissory note would be
          distributed to Dutch Holdco in the liquidation of Euronext; or

               (D) Euronext may, and Holdco may cause Euronext to, merge with
          and into a newly formed, wholly owned Dutch Subsidiary of Dutch


                                       -15-
<PAGE>

          Holdco or Holdco ("DUTCH MERGERCO"), pursuant to which the Euronext
          shareholders will receive shares in Dutch Mergerco; after such merger,
          Holdco may cause Dutch Mergerco to transfer the shares in Euronext Sub
          to Dutch Holdco in exchange for shares of Holdco Common Stock and cash
          and, then, cause Dutch Mergerco to distribute such shares of Holdco
          Common Stock and cash to the Dutch Mergerco shareholders in a complete
          liquidation of Dutch Mergerco. To the extent that a liquidating
          distribution would be made to Dutch Holdco, Dutch Holdco may
          substitute a promissory note for the portion of the consideration
          payable for the Euronext Sub shares, which promissory note would be
          distributed to Dutch Holdco in the liquidation of Dutch Mergerco;

PROVIDED that, in each case, the Post-Closing Reorganization shall be structured
with the goal of providing holders of Euronext Shares who do not exchange their
Euronext Shares in the Offer with the same number of shares of Holdco Common
Stock and the same amount of cash (without taking into account the different tax
treatment or withholding requirements that may apply) that such holders would
have received in the Offer had such holder tendered its Euronext Shares in the
Offer (and not made the Stock Election or the Cash Election) (it being
understood that, in the Post-Closing Reorganization, holders of Euronext Shares
may receive a different amount or form of consideration than they would have
received in the Offer because, among other things, (i) certain Post-Closing
Reorganization steps may require the payment of only cash instead of stock and
cash; (ii) the consideration issued in the Post-Closing Reorganization may be
determined by a court; and (iii) the tax consequences to a holder of Euronext
Shares of receiving consideration in the Post-Closing Reorganization may be
different than they would be if such holder had tendered its Euronext Shares in
the Offer).

          (b) Holdco shall have the right to change the structure of the
Post-Closing Reorganization, which changed structure may include, without
limitation, (i) the amendment of the Articles of Association of Euronext to
permit the creation, among other things, of separate classes of shares, (ii) the
distribution of an extraordinary dividend on the shares of Euronext or a
particular class or classes of shares of Euronext, (iii) the sale and transfer
by Euronext, or any of its Subsidiaries, to Holdco or any affiliate or
Subsidiary of Holdco, of all or a portion of the assets of Euronext or its
Subsidiaries, (iv) the effectuation by Euronext and one or more Dutch
Subsidiaries of Holdco of a legal merger within the meaning of Section 2:309 of
the Dutch Civil Code, (v) the request for termination of the listing of the
Euronext Shares on Euronext Paris, (vi) a liquidation of Euronext, (vii) the
contribution of assets to Euronext in exchange for Euronext Shares (with the
exclusion of preemptive rights, if any, of other shareholders, all in accordance
with applicable Law) or (viii) any one or more combinations of any of the
foregoing actions, all of which shall be conducted in accordance with applicable
Law; PROVIDED, HOWEVER, that Holdco shall not change the structure of the
Post-Closing Reorganization without the prior written consent of Euronext (which
consent shall not be withheld unless the Euronext Boards, after consultation
with their outside legal counsel, determine in good faith that such consent
would result in a breach of its directors' fiduciary duties under applicable
Law; it being understood that, in making this determination, the Euronext


                                       -16-
<PAGE>

Boards shall consider the interests of all shareholders of Euronext to the
extent that it considers the interests of any shareholder or group of
shareholders of Euronext) and shall have the right to propose alternatives for
the Post-Closing Reorganization, which Holdco and NYSE Group shall consider in
good faith. Holdco, NYSE Group and Euronext shall cooperate with each other in
identifying and obtaining any Dutch tax clearances necessary or desirable in
connection with the Post-Closing Reorganization.

          (c) Subject to Sections 3.1(a) and 3.1(b), the Post-Closing
Reorganization shall be structured so that, in the opinion of counsel to NYSE
Group, the Post-Closing Reorganization, together with the Offer, constitutes a
transaction in which Euronext shareholders recognize gain or loss for U.S.
federal income tax purposes, unless, at the election of NYSE Group, it is
desirable to allow the Holdco Common Stock issued in the Offer and Post-Closing
Reorganization to be received tax free by U.S. holders of Euronext Shares, in
which case the Post-Closing Reorganization shall be structured so that, in the
opinion of counsel to NYSE Group, the Post-Closing Reorganization, together with
the Offer, constitutes either a reorganization (within the meaning of Section
368 of the Code) or part of a transfer of Euronext Shares described in Section
351 of the Code.

          (d) The parties acknowledge that they have committed to the College of
Regulators that, if less than half of the issued share capital of Euronext is
represented at the Euronext Stockholders Meeting, Holdco will not commence the
Post-Closing Reorganization unless either (i) the Euronext shareholders approve
the proposal to approve this Agreement and the transactions contemplated by this
Agreement, including the Post-Closing Reorganization, presented at the Euronext
Stockholders Meeting (or any adjournment or postponement thereto); or (ii)
Holdco shall have acquired at least two-thirds of the outstanding Euronext
Shares as a result of the Offer (as extended, if applicable) and any subsequent
transactions to the extent permitted by applicable Law; PROVIDED, HOWEVER, that
the parties further acknowledge that the College of Regulators may waive this
commitment, in which case the parties shall not be bound by such commitment.

          Section 3.2. EFFECT OF POST-CLOSING REORGANIZATION ON EURONEXT STOCK
OPTIONS AND EURONEXT STOCK-BASED AWARDS.

          (a) CONVERSION. Except as provided in Section 3.2(b), at the Effective
Time or to the extent not feasible at such date for some or all holders in some
or all jurisdictions (for Tax reasons or otherwise), promptly thereafter and in
any event no later than the completion of the Post-Closing Reorganization, each
option to purchase Euronext Shares (a "EURONEXT STOCK OPTION") and each
restricted share, restricted stock unit or deferred stocks unit measured in
Euronext Shares (each, a "EURONEXT STOCK-BASED AWARD") granted under the
employee and director stock option and stock-based award plans of Euronext (the
"EURONEXT STOCK PLANS"), whether vested or unvested, shall cease to represent a
Euronext Stock Option or Euronext Stock-Based Award, respectively, and shall be
converted into a stock option to acquire Holdco Common Stock (a "HOLDCO STOCK
OPTION") or a restricted share, restricted stock unit or deferred stock unit
measured in Holdco Common Stock (a "HOLDCO STOCK-BASED AWARD"), respectively, on
the same terms and conditions as were applicable under such Euronext Stock
Option and Euronext Stock-


                                       -17-
<PAGE>

Based Award prior to the Post-Closing Reorganization (or such other arrangement
that the parties shall mutually agree prior to the filing of the Offer with the
AMF); PROVIDED that the number of shares of Holdco Common Stock subject to each
such Holdco Stock Option or Holdco Stock-Based Award shall be the number of
Euronext Shares subject to each such Euronext Stock Option or Euronext
Stock-Based Award multiplied by the Stock Election Amount (assuming no
pro-ration or adjustment as provided in Section 1.1(d)), rounded, if necessary,
to the nearest whole share of Holdco Common Stock, and such Holdco Stock Option
shall have an exercise price per share (rounded to the nearest one-hundredth of
a cent) equal to the per share exercise price specified in such Euronext Stock
Option divided by the Stock Election Amount (assuming no pro-ration or
adjustment as provided in Section 1.1(d)).

          (b) SPECIFIC ARRANGEMENT FOR CERTAIN HOLDERS. If it is reasonably
foreseeable that the conversion of any of the Euronext Stock Options and/or
Euronext Stock-Based Awards referred to in Section 3.2(a) would cause holders of
Euronext Stock Options and/or Euronext Stock-Based Awards who are French
residents for Tax purposes (the "FRENCH HOLDERS") to incur additional Taxes or
social security charges under French law (the "FRENCH TAXES"), as compared to
the French Taxes that such French Holders would incur pursuant to the first
sentence of Article 200 A 6 of the French General Tax Code with respect to
Euronext Stock Options if such French Holders had converted the Euronext Stock
Options after holding such Euronext Stock Options for four years from the date
of grant of the original Euronext Stock Option or as compared to the French
Taxes that such French Holders would incur pursuant to Article 200 A 6 BIS of
the French General Tax Code with respect to Euronext Stock-Based Awards if such
French Holder had converted the Euronext Stock-Based Awards into Euronext Shares
after holding such Euronext Stock-Based Awards for any applicable vesting period
and after holding the Euronext Common Stock resulting from such vesting for two
years (the "FAVORABLE TAX AMOUNT" for such Euronext Stock Option or Euronext
Stock-Based Award, as applicable), Holdco shall offer to the French Holders of
the Euronext Stock-Options and Euronext Stock-Based Awards, whether vested or
unvested, the right to participate in certain equity arrangements entered into
between Holdco and the relevant French Holders (the "EQUITY ARRANGEMENTS"),
pursuant to which Holdco shall undertake vis-a-vis each such French Holder, and
each such French Holder shall undertake vis-a-vis Holdco, to exchange each
Euronext Share purchased, subscribed or received pursuant to the Euronext Stock
Options or Euronext Stock-Based Awards after the completion of the Offer for a
number of shares of Holdco Common Stock equal to the Stock Election Amount
(assuming no pro-ration or adjustment as provided in Section 1.1(d)); PROVIDED
that nothing in this Section 3.2(b) shall limit or prohibit Holdco from
undertaking the Post-Closing Reorganization in the time or manner that Holdco
shall determine, subject to the requirements of Sections 3.1(a) and 3.1(b). In
the event that Holdco shall undertake a Post-Closing Reorganization that (1)
shall result in the termination of the Equity Arrangements, or (2) shall prevent
Euronext from issuing Euronext Shares upon exercise of the Euronext Stock
Options or Euronext Stock-Based Awards, then the outstanding Euronext Stock
Options and Euronext Stock-Based Awards held by the French Holders shall be
converted into Holdco Stock Options and Holdco Stock-Based Awards as provided in
Section 3.2(a). In the event that the Post-Closing Reorganization (including,
for the avoidance of doubt, the conversion provided in


                                       -18-
<PAGE>

Section 3.2(a) as the case may be) shall cause the French Holders to incur
French Taxes in an amount greater than the Favorable Tax Amount in respect of
such Euronext Stock Options or Euronext Stock-Based Awards, then Holdco shall
pay to each such French Holder (or pay to the applicable Tax authority if
required by applicable Law) an amount of cash (the "GROSS-UP PAYMENT") equal to
the difference between (i) the aggregate amount of French Taxes imposed on such
French Holder that arises as a result of the Post-Closing Reorganization, if
any, MINUS (ii) the aggregate Favorable Tax Amount that such French Holders
would have incurred with respect to such Euronext Stock Options and/or Euronext
Stock-Based Awards after holding such Euronext Stock Options and/or Euronext
Stock-Based Awards (or the resulting shares) for the period from the date of
grant necessary to qualify for taxation based on the Favorable Tax Amount. In
addition, Holdco shall pay to each such French Holder (or pay to the applicable
Tax authority if required by applicable Law) an amount of cash equal to the
aggregate French Taxes incurred by such French Holder as a result of the
Gross-Up Payment and the payments pursuant to this sentence. Notwithstanding
anything contained herein to the contrary, in no event shall Holdco be required
to make any Gross-Up Payment or any other payment pursuant to this Section
3.2(b) in respect of (A) Euronext Stock Options originally granted under
Euronext's SBF Option Plan or Euronext's 2002 Option Plan or any other Euronext
Stock Options that were granted on a date that is four or more years prior to
the date on which a conversion of such options occurs in accordance with Section
3.2(a) (including Holdco Stock Options upon any such conversion) or (B) a
Euronext Stock-Based Award granted on a date that is granted prior to 2005, if
any.

          (c) TAX-FREE ROLLOVER. Subject to the provisions of Section 3.2(b),
NYSE Group, Holdco and Euronext shall cooperate and use reasonable best efforts
to cause, where possible, the conversion of all Euronext Stock Options and
Euronext Stock-Based Awards into Holdco Stock Options or Holdco Stock-Based
Awards (as applicable) as set forth in Section 3.2(a) not to be a taxable
transaction for the holders of these Euronext Stock Options or Euronext
Stock-Based Awards; PROVIDED that nothing in this Section 3.2(c) shall (A) limit
or prohibit Holdco from undertaking the Post-Closing Reorganization in the time
or manner that Holdco shall determine, subject to the requirements of Sections
3.1(a) and 3.1(b), or (B) subject to Section 3.2(b), require Holdco to
compensate, or prohibit Holdco from compensating, any holder of a Euronext Stock
Option or Euronext Stock-Based Award for any Taxes or social security charges
incurred or borne by such holder. Any adjustment to Euronext Stock Options or
Stock-Based Awards shall comply with the requirements of Section 409A of the
Code, to the extent applicable.

          Section 3.3. COOPERATION OF EURONEXT. Euronext shall take, on or after
the date of this Agreement, all actions reasonably necessary or desirable to
accomplish the Post-Closing Reorganization (provided that the Post-Closing
Reorganization shall not be required to be effective prior to the consummation
of the Offer), including, without limitation: (i) the convening of the necessary
meetings of Euronext shareholders and the Euronext Boards, (ii) the
consideration of any and all necessary or desirable resolutions by the Euronext
Boards for the purpose of the Post-Closing Reorganization, and (iii) the
execution of any and all reasonably requested documents, agreements or deeds
that are


                                        -19-
<PAGE>

necessary or desirable to effectuate any of the corporate reorganizations and
the filing or registration of any or all of such documents, agreements or deeds
with the appropriate authorities or agencies. The Board of Directors of Holdco
(or any committee thereof consisting of an equal number of U.S. Persons and
European Persons, each as defined in the form of Amended and Restated Bylaws of
Holdco attached hereto), taking into account the best interests of Holdco and
its Subsidiaries, taken together as a whole, may require, except to the extent
prohibited by applicable Law or contrary to the requirements of any European
Regulator, (i) the conversion of any Subsidiary of Euronext from an entity that
is classified as a corporation pursuant to Treasury Regulation Section
301.7701-2(b)(8) into an entity that is an "eligible entity" (within the meaning
of Treasury Regulation Section 301.7701-3(a)), and/or (ii) entity classification
elections pursuant to Treasury Regulation Section 301.7701-3 for any Subsidiary
of Euronext in such manner and with such effective dates as specified by Holdco.
Upon the request of Holdco, Euronext shall, and shall cause its Subsidiaries to,
except to the extent prohibited by applicable Law or contrary to the
requirements of any European Regulator, and subject to Sections 3.1(a) and
3.1(b), take any and all other reasonable actions that are required or desirable
to accomplish the Post-Closing Reorganization.

                                    ARTICLE IV

             CORPORATE NAME; EXECUTIVE OFFICES; GOVERNING DOCUMENTS

          Section 4.1. CORPORATE NAME AND EXECUTIVE OFFICES.


          (a) CORPORATE NAME. As of the Effective Time, the official name of
Holdco shall be "NYSE Euronext", or such other name as mutually agreed by NYSE
Group and Euronext.

          (b) EXECUTIVE OFFICES. As of and after the Effective Time, the
headquarters and executive offices of Holdco shall be located at NYSE Group's
current headquarters, and the headquarters for the non-U.S. businesses of Holdco
shall be located at Euronext's current headquarters.

          Section 4.2. CERTIFICATES OF INCORPORATION.


          (a) CERTIFICATE OF INCORPORATION OF HOLDCO. Subject to any required
approval of the SEC and any European Regulator, prior to the Effective Time,
NYSE Group, as the sole stockholder of Holdco, shall (i) adopt by written
consent and (ii) cause the board of directors of Holdco to adopt an Amended and
Restated Certificate of Incorporation of Holdco substantially in the form
attached hereto as EXHIBIT A (the "NEW HOLDCO CHARTER") to be in effect as of
the Effective Time; PROVIDED that such form may be amended by NYSE Group and
Euronext in response to the comments of the staff of the SEC, any European
Regulator and other Governmental Entity with jurisdiction in connection with
obtaining any required approval for the transactions contemplated by this
Agreement or otherwise.


                                       -20-
<PAGE>


          "EUROPEAN REGULATOR" means any of the Dutch Minister of Finance, the
     French Minister of the Economy, the French Committee of Credit
     Establishments and Investments Undertakings (COMITE DES ETABLISSEMENTS DE
     CREDIT ET DES ENTREPRISES D'INVESTISSEMENT - CECEI), the AMF, the
     Netherlands Authority for the Financial Markets (AUTORITEIT FINANCIELE
     MARKTEN), the CBFA, the Portuguese Securities Market Commission (COMISSAO
     DO MERCADO DE VALORES MOBILIARIOS - CMVM), the U.K. Financial Services
     Authority (FSA) and the College of Regulators, in each case only to the
     extent that it has authority and jurisdiction in the particular context.

          "COLLEGE OF REGULATORS" means the Committee of Chairmen of the AMF,
     the Netherlands Authority for the Financial Markets (AUTORITEIT FINANCIELE
     MARKTEN), the CBFA, the Portuguese Securities Market Commission (COMISSAO
     DO MERCADO DE VALORES MOBILIARIOS - CMVM), and the U.K. Financial Services
     Authority (FSA), pursuant to the Memoranda of Understanding, dated March 3,
     2003 and March 22, 2001.

          (b) CERTIFICATE OF INCORPORATION OF THE SURVIVING CORPORATION. Subject
to any required approval of the SEC, the parties shall take all requisite action
to cause the Certificate of Incorporation of the Surviving Corporation in effect
immediately following the Effective Time to be substantially in such form as
determined by NYSE Group.

          (c) ORGANIZATIONAL DOCUMENTS OF SUBSIDIARIES OF HOLDCO. NYSE Group and
Euronext shall agree on the forms of the organizational documents that will be
in effect as of the Effective Time for those entities that will be Subsidiaries
of Holdco as of the Effective Time set forth on Section 4.2 of the Euronext
Disclosure Letter.

          Section 4.3. BYLAWS.

          (a) BYLAWS OF HOLDCO. Subject to any required approval of the SEC and
any European Regulator, prior to the Effective Time, NYSE Group, as the sole
stockholder of Holdco, shall adopt by written consent an Amended and Restated
Bylaws of Holdco substantially in such form attached hereto as EXHIBIT B (the
"NEW HOLDCO BYLAWS") to be in effect as of the Effective Time; PROVIDED that
such form may be amended by NYSE Group and Euronext in response to the comments
of the staff of the SEC, any European Regulator and other Governmental Entities
with jurisdiction in connection with obtaining any required approval for the
transactions contemplated by this Agreement or otherwise.

          (b) BYLAWS OF THE SURVIVING CORPORATION. Subject to any required
approval of the SEC, the parties shall take all requisite action to cause the
Bylaws of the Surviving Corporation in effect immediately following the
Effective Time to be substantially in such form as determined by NYSE Group.


                                        -21-
<PAGE>


                                   ARTICLE V

              BOARD AND MANAGEMENT COMMITTEE AT THE EFFECTIVE TIME


          Section 5.1. BOARD OF DIRECTORS OF HOLDCO. At the Effective Time, the
Board of Directors of Holdco will consist of twenty-two members. Such Board of
Directors shall be comprised of: (i) the Chief Executive Officer of NYSE Group
as of immediately prior to the Effective Time (who shall be the Chief Executive
Officer of Holdco as of immediately after the Effective Time); (ii) the Chief
Executive Officer of Euronext as of immediately prior to the Effective Time (who
shall be the Deputy Chief Executive Officer of Holdco as of immediately after
the Effective Time); (iii) the Chairman of the Supervisory Board of Euronext as
of immediately prior to the Effective Time (who shall be the Chairman of the
Board of Directors of Holdco as of immediately after the Effective Time); (iv)
the Chairman of the Board of Directors of NYSE Group as of immediately prior to
the Effective Time (who shall be the Deputy Chairman of the Board of Directors
of Holdco as of immediately after the Effective Time); (v) nine individuals from
the Board of Directors of NYSE Group as of immediately prior to the Effective
Time (in addition to the Chief Executive Officer and Chairman of NYSE Group as
of immediately prior to the Effective Time); (vi) eight individuals from the
Supervisory Board of Euronext as of immediately prior to the Effective Time (in
addition to the Chief Executive Officer and Chairman of Euronext as of
immediately prior to the Effective Time); and (vii) Sylvain Hefes, who is a
European Person (as defined in the form of Amended and Restated Bylaws of Holdco
attached hereto) approved by both the Euronext Supervisory Board and the NYSE
Group Board of Directors; PROVIDED that in the case of clause (vi), Euronext may
substitute one or more of such individuals from the Supervisory Board with
persons who are European Persons (PROVIDED, FURTHER, that such newly designated
person is reasonably acceptable to NYSE Group). If NYSE Group shall have fewer
than nine members (excluding the Chief Executive Officer and Chairman of NYSE
Group) on its Board of Directors as of immediately prior to the Effective Time,
NYSE Group may, in its discretion, designate an individual to serve on the Board
of Directors of Holdco that shall not be a member of the Board of Directors of
NYSE Group; PROVIDED that such designee is reasonably acceptable to Euronext.
Each of the members of the Board of Directors of Holdco, other than the Chief
Executive Officer of Holdco and the Deputy Chief Executive Officer of Holdco,
must satisfy Holdco's director independence policy, as it may be amended from
time to time. Regularly scheduled meetings of the Board of Directors of Holdco
after the Effective Time will occur with substantially equal frequency within
the United States and Europe. At the first annual meeting of stockholders of
Holdco at which directors shall be elected, the initial members of the Board of
Directors of Holdco shall be nominated at such meeting to be members of the
Board of Directors of Holdco.

          Section 5.2. NOMINATING AND GOVERNANCE COMMITTEE OF THE HOLDCO BOARD
OF DIRECTORS. As of the Effective Time, the Nominating and Governance Committee
of the Board of Directors of Holdco shall each be comprised of an equal number
of directors of NYSE Group as of immediately prior to the Effective Time and
directors of Euronext as of immediately prior to the Effective Time.


                                        -22-
<PAGE>

          Section 5.3. MANAGEMENT COMMITTEE OF HOLDCO AT THE EFFECTIVE TIME. As
of the Effective Time, Holdco shall be managed by a Management Committee
consisting of fourteen members. Such Management Committee shall be comprised of
seven designees of NYSE Group and seven designees of Euronext, and shall
include, among others, the Chief Executive Officer of NYSE Group as of
immediately prior to the Effective Time (who shall be the Chief Executive
Officer of Holdco as of immediately after the Effective Time) and the Chief
Executive Officer of Euronext as of immediately prior to the Effective Time (who
shall be the Deputy Chief Executive Officer of Holdco as of immediately after
the Effective Time).


                                   ARTICLE VI

                         REPRESENTATIONS AND WARRANTIES

          Section 6.1. REPRESENTATIONS AND WARRANTIES OF NYSE GROUP. Except as
set forth in the corresponding sections or subsections of the disclosure letter
dated as of the date hereof, delivered to Euronext by NYSE Group on or prior to
entering into this Agreement (the "NYSE GROUP DISCLOSURE LETTER"), in such other
section or subsection of the NYSE Group Disclosure Letter where the
applicability of such exception is reasonably apparent, or in any report filed
with or furnished to SEC and publicly available on the SEC's Electronic Data
Gathering, Analysis and Retrieval System (EDGAR) prior to the date hereof, NYSE
Group hereby represents and warrants to Euronext as set forth in this Section
6.1. The mere inclusion of any item in the NYSE Group Disclosure Letter as an
exception to a representation or warranty of NYSE Group in this Agreement shall
not be deemed to be an admission that such item is a material exception, fact,
event or circumstance, or that such item, individually or in the aggregate, has
had or is reasonably expected to have, a Material Adverse Effect on NYSE Group
or trigger any other materiality qualification.

          (a) ORGANIZATION, GOOD STANDING AND QUALIFICATION. NYSE Group is a
corporation duly organized, validly existing and in good standing under the laws
of the State of Delaware. Each of NYSE Group's Subsidiaries is an entity duly
organized, validly existing and in good standing under the laws of its
respective jurisdiction of organization. Each of NYSE Group and its Subsidiaries
has all requisite corporate, company or similar power and authority to own and
operate its properties and assets and to carry on its business as presently
conducted and is qualified to do business and is in good standing as a foreign
corporation in each jurisdiction where the ownership or operation of its assets
or properties or conduct of its business requires such qualification, except
where the failure to be so organized, existing and in good standing or to have
such power or authority when taken together with all other such failures,
individually or in the aggregate, has not had and is not reasonably expected to
have a Material Adverse Effect on NYSE Group. NYSE Group has made available to
Euronext a complete and correct copy of the NYSE Group Organizational Documents
and NYSE Group Subsidiary Organizational Documents (other than NYSE Group
Subsidiary Organizational Documents for Subsidiaries of NYSE Group that have no
operations), in effect as of the date hereof.



                                       -23-
<PAGE>

NYSE Group Organizational Documents and NYSE Group Subsidiary Organizational
Documents so delivered are in full force and effect. Section 6.1(a) of the NYSE
Group Disclosure Letter contains a correct and complete list of all Subsidiaries
of NYSE Group, and each jurisdiction where NYSE Group and each of its
Subsidiaries is organized and qualified to do business. Holdco is a wholly owned
subsidiary of NYSE Group and is a corporation duly organized, validly existing
and in good standing under the laws of the State of Delaware. Holdco has
conducted no business other than activities incidental to its organization and
the consummation of the transactions contemplated by this Agreement.

           "NYSE GROUP ORGANIZATIONAL DOCUMENTS" means the Amended and Restated
     Certificate of Incorporation and the Amended and Restated Bylaws of NYSE
     Group.

          "NYSE GROUP SUBSIDIARY ORGANIZATIONAL DOCUMENTS" means the
     certificates of incorporation, limited liability company agreement, bylaws
     and similar organizational documents of all Subsidiaries of NYSE Group.

          "MATERIAL ADVERSE EFFECT" on NYSE Group or Euronext, as applicable,
     means a material adverse effect on the business, results of operations or
     financial condition of NYSE Group or Euronext (as applicable) and its
     Subsidiaries (including, in the case of Euronext, the Joint Ventures),
     taken as a whole; PROVIDED, HOWEVER, that the following shall not be
     considered in determining whether a Material Adverse Effect has occurred:
     (A) any change or development in economic, business or securities markets
     conditions generally (including any such change or development resulting
     from acts of war or terrorism) to the extent that such change or
     development does not affect NYSE Group or Euronext (as applicable) and its
     Subsidiaries (including, in the case of Euronext, the Joint Ventures),
     taken as a whole, in a materially disproportionate manner relative to other
     securities exchanges or trading markets; (B) any change or development to
     the extent resulting from the execution or announcement of this Agreement
     or the transactions contemplated hereby, or (C) any change or development
     to the extent resulting from any action or omission by NYSE Group or
     Euronext (as applicable) or any of its Subsidiaries (including, in the case
     of Euronext, the Joint Ventures) that is required by this Agreement.

           "SUBSIDIARY" means, with respect to any Person, any entity, whether
     incorporated or unincorporated, of which at least a majority of the
     securities or ownership interests having by their terms voting power to
     elect a majority of the board of directors or other persons performing
     similar functions is directly or indirectly owned or controlled by such
     party or by one or more of its respective Subsidiaries and, with respect to
     Euronext for purposes of Article VII, shall include the Joint Ventures;
     PROVIDED that any obligation of Euronext to cause the Joint Ventures to
     take an action or not to take an action shall be limited to the extent that
     Euronext has control over such action.



                                        -24-
<PAGE>

          "JOINT VENTURES" means (1) Atos Euronext Market Solutions Holding SAS
     and its Subsidiaries (including, but not limited to, AtosEuronext SA, Atos
     Euronext Markets Solutions Limited), and (2) MTS S.p.A., Marches des titres
     France (MTS France), MTS Next Ltd and their respective Subsidiaries.

          (b) CAPITALIZATION. The authorized capital stock of NYSE Group
consists of 600,000,000 shares, of which 156,068,055 shares of NYSE Group Common
Stock are outstanding as of May 31, 2006 (not including 1,645,415 shares of NYSE
Group Common Stock held in treasury, all of which are held by NYSE Arca, Inc.,
an indirect wholly owned Subsidiary of NYSE Group), and no shares of Preferred
Stock, par value $0.01 per share (the "NYSE GROUP PREFERRED STOCK") are
outstanding as of the date hereof. All of the outstanding shares of NYSE Group
Common Stock have been duly authorized and are validly issued, fully paid and
nonassessable. NYSE Group has no shares of NYSE Group Common Stock or NYSE Group
Preferred Stock reserved for issuance, except that, as of May 31, 2006, there
were 1,352,715 shares of NYSE Group Common Stock underlying restricted stock
units, 1,862,427 shares of NYSE Group Common Stock underlying options and
8,500,000 shares of NYSE Group Common Stock reserved for issuance for NYSE Group
employees and directors under NYSE Group's 2006 Stock Incentive Plan. Each of
the outstanding shares of capital stock or other equity interests of each of
NYSE Group's Subsidiaries is duly authorized, validly issued, fully paid and
nonassessable and owned by NYSE Group or by a direct or indirect wholly owned
subsidiary of NYSE Group, free and clear of any lien, pledge, security interest,
claim or other encumbrance. Except as set forth above, there are no preemptive
or other outstanding rights, options, warrants, conversion rights, stock
appreciation rights, redemption rights, repurchase rights, agreements,
arrangements, calls, commitments or rights of any kind that obligate NYSE Group
or any of its Subsidiaries to issue or sell any shares of capital stock or other
securities of NYSE Group or any of its Subsidiaries or any securities or
obligations convertible or exchangeable into or exercisable for, or giving any
Person a right to subscribe for or acquire, any NYSE Group Shares or other
securities of NYSE Group or any of its Subsidiaries, and no securities or
obligations evidencing such rights are authorized, issued or outstanding. NYSE
Group does not have outstanding any bonds, debentures, notes or other
obligations the holders of which have the right to vote (or convertible into or
exercisable for securities having the right to vote) with the stockholders of
NYSE Group on any matter.

          (c) CORPORATE AUTHORITY.

          (i) NYSE Group has all requisite corporate power and authority and has
taken all corporate action necessary in order to authorize, execute, deliver and
perform its obligations under this Agreement, and to consummate the Merger and
the other transactions contemplated hereby (including all actions by the Board
of Directors of NYSE Group set forth in clause (ii)(A) below), subject only to
(A) the approval and adoption of this Agreement and the Merger by a vote of the
holders of a majority of the outstanding shares of NYSE Group Common Stock
entitled to vote thereon, (B) the approval of certain aspects of the certificate
of incorporation of Holdco that will be in effect after the Merger by a vote of
the holders of a majority of the outstanding shares of NYSE Group Common


                                       -25-
<PAGE>

Stock present at the NYSE Group Stockholders Meeting ((A) and (B) collectively,
the "NYSE GROUP REQUISITE VOTE") and (C) to the extent required, approval of the
SEC. This Agreement is a valid and binding agreement of NYSE Group enforceable
against NYSE Group in accordance with its terms, subject, as to enforcement, to
bankruptcy, insolvency, fraudulent transfer, reorganization, moratorium and
similar laws of general applicability relating to or affecting creditors' rights
and to general equity principles (the "BANKRUPTCY AND EQUITY EXCEPTION"). The
representations and warranties set forth in this Section 6.1(c)(i) shall apply
MUTATIS MUTANDIS with respect to both the Original Combination Agreement and
this Agreement, and, with respect to the Original Combination Agreement, shall
be made as of the Original Execution Date and, with respect to this Agreement,
shall be made as of the Execution Date; PROVIDED, HOWEVER, that none of the
representations and warranties set forth in this Section 6.1(c)(i) "speaks as of
an earlier date" for purposes of Section III(a) of Annex II.

          (ii) The Board of Directors of NYSE Group: (A) has approved, adopted
and declared advisable this Agreement, the Offer and the Merger and the other
transactions contemplated hereby; (B) has recommended that the NYSE Group
stockholders approve and adopt this Agreement and the transactions contemplated
by this Agreement; and (C) has received the opinion of its financial advisor,
Citigroup Global Markets Inc. to the effect that the Merger Consideration to be
received by the holders of the NYSE Group Common Stock in the Merger is fair
from a financial point of view, as of the date of such opinion, to such holders,
a copy of which opinion has been delivered to Euronext. It is agreed and
understood that such opinion is for the benefit of NYSE Group's Board of
Directors and may not be relied on by Euronext. The representations and
warranties set forth in clause (A) of this Section 6.1(c)(ii) shall apply
MUTATIS MUTANDIS with respect to both the Original Combination Agreement and
this Agreement, and, with respect to the Original Combination Agreement, shall
be made as of the Original Execution Date and, with respect to this Agreement,
shall be made as of the Execution Date; PROVIDED, HOWEVER, that none of the
representations and warranties set forth in clause (A) of this Section
6.1(c)(ii) "speaks as of an earlier date" for purposes of Section III(a) of
Annex II.

          (d) NO CONFLICTS.

           (i) (A) Neither the execution and delivery by NYSE Group of this
Agreement, the compliance by it with all of the provisions of and the
performance by it of its obligations under this Agreement, nor the consummation
of the Offer, the Merger and the other transactions herein contemplated will
conflict with, or result in a breach or violation of, or result in any
acceleration of any rights or obligations or the payment of any penalty under or
the creation of a lien, pledge, security interest or other encumbrance on assets
(with or without the giving of notice or the lapse of time) pursuant to, or
permit any other party any improvement in rights with respect to or permit it to
exercise, or otherwise constitute a default under, any provision of any Contract
in effect as of the date hereof, or result in any change in the rights or
obligations of any party under any Contract in effect as of the date hereof, to
which NYSE Group or any of its Subsidiaries is a party or by which NYSE Group or
any of its Subsidiaries or any of their respective assets is bound, (B) nor,
subject to any required approval of the New Holdco Charter and New Holdco Bylaws
by


                                       -26-
<PAGE>

the SEC or any European Regulator, will such execution and delivery, compliance,
performance or consummation result in any breach or violation of, or a default
under, the provisions of the NYSE Group Organizational Documents or the NYSE
Group Subsidiary Organizational Documents, or any Law applicable to it, except
for such conflicts, breaches, violations, defaults, payments, accelerations,
creations or changes that, individually or in the aggregate, have not had and
are not reasonably expected to have, a Material Adverse Effect on NYSE Group.

          (ii) Neither NYSE Group nor any of its Subsidiaries is a party to or
bound by any non-competition Contracts or other Contract that purports to limit
in any material respect either the type of business in which NYSE Group or its
Subsidiaries (or, after giving effect to the Merger, Holdco or its Subsidiaries)
may engage or the manner or locations in which any of them may so engage in any
business.

          "CONTRACT" means, with respect to any Person, any agreement,
     indenture, loan agreement, undertaking, note or other debt instrument,
     contract, lease, mortgage, deed of trust, permit, license, understanding,
     arrangement, commitment or other obligation to which such Person or any of
     its subsidiaries is a party or by which any of them may be bound or to
     which any of their properties may be subject.

          (e) GOVERNMENTAL APPROVALS AND CONSENTS. Other than (i) the approvals
and consents to be obtained from the SEC or any European Regulator, (ii) the
filings and/or notices under the Hart-Scott-Rodino Antitrust Improvement Act of
1976, as amended (the "HSR ACT"), if applicable, the U.S. Securities Exchange
Act of 1934, as amended (the "EXCHANGE ACT"), and the Securities Act, and (iii)
the governmental approvals set forth on Section 6.1(e) of the NYSE Group
Disclosure Letter (the "GOVERNMENTAL APPROVALS"), state securities, takeover and
"blue sky" laws, no authorizations, consents, approvals, orders, permits,
notices, reports, filings, registrations, qualifications and exemptions of, with
or from, or other actions are required to be made by NYSE Group or any of its
Subsidiaries with, or obtained by NYSE Group or any of its Subsidiaries from,
any governmental or regulatory authority, agency, commission, body or other
governmental or regulatory entity, U.S. or non-U.S., including the SEC and the
European Regulators ("GOVERNMENTAL ENTITY"), in connection with the execution
and delivery by NYSE Group of this Agreement, the performance by NYSE Group of
its obligations hereunder, and the consummation of the transactions contemplated
hereby.

          (f) NYSE GROUP REPORTS; FINANCIAL STATEMENTS. Each of NYSE Group and
its Subsidiaries has made available each of its annual reports and proxy
statements delivered to its stockholders since November 3, 2005 (collectively,
the "NYSE GROUP REPORTS"). Neither NYSE Group nor any of its Subsidiaries has
received, or knows of, any comments or inquiries from the SEC relating to any
NYSE Group Report that, individually or in the aggregate, have had or are
reasonably expected to have a Material Adverse Effect on NYSE Group. As of their
respective dates (or if amended, as of the date of such amendment), the NYSE
Group Reports did not contain any untrue statement of a material fact or omit to
state a material fact required to be stated therein or necessary to make the


                                       -27-
<PAGE>


statements made therein, in light of the circumstances in which they were made,
not misleading. NYSE Group has delivered to the Euronext true and complete
copies of the audited consolidated financial statements of NYSE Group, New York
Stock Exchange, Inc. and Archipelago Holdings Inc. for the fiscal year ended
December 31, 2005 (the "NYSE GROUP FINANCIAL STATEMENTS"). Each of the
consolidated balance sheets included in the NYSE Group Financial Statements
(including the related notes and schedules) fairly presents the consolidated
financial position of NYSE Group, New York Stock Exchange, Inc. and Archipelago
Holdings, Inc., respectively, and its Subsidiaries as of its date and each of
the consolidated statements of income, retained earnings, and cash flows and of
changes in financial position included in the NYSE Group Financial Statements
(including any related notes and schedules) fairly presents the results of
operations, retained earnings, stockholders' equity, cash flows and changes in
financial position, as the case may be, of NYSE Group, New York Stock Exchange,
Inc. and Archipelago Holdings, Inc. and its Subsidiaries for the periods set
forth therein, in each case in conformity with U.S. generally accepted
accounting principles ("GAAP") consistently applied during the periods involved,
except as may be noted therein.

          (g) ABSENCE OF CERTAIN CHANGES. Except as disclosed in the NYSE Group
Financial Statements, since December 31, 2005, NYSE Group and its Subsidiaries
have conducted their respective businesses only in, and have not engaged in any
material transaction other than according to, the ordinary and usual course of
such businesses and there has not been (i) any change or development that,
individually or in the aggregate, has had or is reasonably expected to have, a
Material Adverse Effect on NYSE Group; (ii) any material damage, destruction or
other casualty loss with respect to any material asset or property owned, leased
or otherwise used by NYSE Group or any of its Subsidiaries, whether or not
covered by insurance; or (iii) any change by NYSE Group in financial accounting
principles, practices or methods that is not required by GAAP. Since December
31, 2005, except as provided for herein or as disclosed in the NYSE Group
Financial Statements, there has not been any increase in the compensation
payable or that could become payable by NYSE Group or any of its Subsidiaries to
officers or key employees or any amendment of or other modification to any of
the NYSE Group Benefit Plans other than increases or amendments in the ordinary
and usual course consistent with past practice.

          (h) COMPLIANCE. Neither NYSE Group nor any of its Subsidiaries is in
conflict with, or in default or violation of, (i) any U.S. federal, state, local
or non-U.S. law, statute, ordinance, rule, regulation, judgment, order,
injunction, decree, arbitration award, agency requirement, writ, franchise,
variance, exemption, approval, license or permit (each, a "LAW" and collectively
"LAWS") of any Governmental Entity or (ii) any Contract to which NYSE Group or
any of its Subsidiaries is a party or by which NYSE Group or any of its
Subsidiaries or its or any of their respective properties is bound or affected,
except in each of cases (i) and (ii), for any such conflicts, defaults or
violations that, individually or in the aggregate, have not had and are not
reasonably expected to have a Material Adverse Effect on NYSE Group. NYSE Group
and its Subsidiaries are in compliance with all undertakings of NYSE Group and
its Subsidiaries in connection with any investigation or examination by the SEC
or any other Governmental Entity, other than


                                        -28-
<PAGE>

such failures to be in compliance that, individually or in the aggregate, have
not had and are not reasonably expected to have a Material Adverse Effect on
NYSE Group. Except as set forth in the NYSE Group Financial Statements, no
investigation or review by any Governmental Entity with respect to NYSE Group or
any of its Subsidiaries is pending or, to the knowledge of NYSE Group,
threatened, nor has any Governmental Entity indicated an intention to conduct
the same, except, in each case, for those the outcome of which, individually or
in the aggregate, have not had and are not reasonably expected to have a
Material Adverse Effect on NYSE Group. Except as set forth in the NYSE Group
Financial Statements or as, individually or in the aggregate, is not reasonably
expected to have a Material Adverse Effect on NYSE Group, (x) no material change
is required in NYSE Group's or any of its Subsidiaries' processes, properties or
procedures to comply with any Laws in effect on the date hereof or enacted as of
the date hereof and scheduled to be effective after the date hereof, and (y)
NYSE Group has not received any written notice or written communication of any
noncompliance with any Law. Each of NYSE Group and its Subsidiaries has all
permits, licenses, franchises, variances, exemptions, orders and other
authorizations, consents and approvals (together, "PERMITS") of all Governmental
Entities necessary to conduct its business as presently conducted, except where
the failure to have such Permits, individually or in the aggregate, has not had
and is not reasonably expected to have a Material Adverse Effect on NYSE Group.

          (i) LITIGATION AND LIABILITIES. Except as disclosed in the NYSE Group
Financial Statements, there are no (i) civil, criminal or administrative
actions, suits, claims, hearings, investigations or proceedings pending or, to
the knowledge of NYSE Group, threatened against NYSE Group, any of its
Subsidiaries or any of their respective directors or officers or (ii)
obligations or liabilities, whether or not accrued, contingent or otherwise and
whether or not required to be disclosed, including those relating to, or any
other facts or circumstances of which, to the knowledge of NYSE Group, could
result in any claims against, or obligations or liabilities of, NYSE Group or
any of its affiliates, except, in both cases, for those that, individually or in
the aggregate, have not had and are not reasonably expected to have a Material
Adverse Effect on NYSE Group.

          (j) EMPLOYEE BENEFITS.

          (i) All material benefit and compensation plans, contracts, policies
     or arrangements covering current or former employees of NYSE Group and its
     Subsidiaries and current or former directors of NYSE Group and its
     Subsidiaries, including, but not limited to, deferred compensation, equity
     option, equity purchase, equity appreciation rights, equity based incentive
     and bonus plans (the "NYSE GROUP BENEFIT PLANS") are listed in Section
     6.1(j) of the NYSE Group Disclosure Letter. True and complete copies of all
     material NYSE Group Benefit Plans listed in Section


 
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