UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                    FORM 8-K

                                 CURRENT REPORT
     PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

                                  MAY 22, 2006
                Date of Report (Date of earliest event reported)

                                NYSE GROUP, INC.
             (Exact name of registrant as specified in its charter)

           DELAWARE                      001-32829                20-2786071
(State or other jurisdiction of    (Commission File Number)     (IRS Employer
            incorporation)                                   Identification No.)


              11 WALL STREET
            NEW YORK, NEW YORK                                 10005
      (Address of principal executive                        (Zip Code)
                 offices)

Registrant's telephone number, including area code: (212) 656-3000

                                 NOT APPLICABLE
          (Former Name or Former Address, if Changed Since Last Report)


Check the appropriate box below if the Form 8-K filing is intended to
simultaneously satisfy the filing obligation of the registrant under any of the
following provisions:

[X]  Written communications pursuant to Rule 425 under the Securities Act (17
     CFR 230.425)

[X]  Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR
     240.14a-12)

[ ]  Pre-commencement communications pursuant to Rule 14d-2(b) under the
     Exchange Act (17 CFR 240.14d-2(b))

[ ]  Pre-commencement communications pursuant to Rule 13e-4(c) under the
     Exchange Act (17 CFR 240.13e-4(c))





ITEM 8.01  OTHER EVENTS

On May 22, 2006, NYSE Group, Inc. ("NYSE Group") confirmed in a letter to the
Chairmen of the Euronext N.V. Supervisory and Management Boards the terms of a
business combination proposal under discussion between NYSE Group and Euronext
N.V. and issued a press release concerning that letter. A copy of the press
release and the letter are attached hereto as exhibits 99.1 and 99.2,
respectively, and incorporated herein by reference. On the same day, NYSE Group
held an investor conference call on the proposed business combination. A copy of
the slides made publicly available in connection with such conference call and
the transcript of such conference call are attached hereto as exhibits 99.3 and
99.4, respectively.

Under terms of the proposal, each share of NYSE Group would be converted into
one share of common stock of the combined company, which would be named "NYSE
Euronext." Holders of Euronext ordinary shares would be offered the right to
exchange each of their shares for 0.98 shares of NYSE Euronext stock and
(euro)21.32 in cash. The transaction is based on a fixed ratio of 1.4000 shares
of the combined company for each Euronext ordinary share, with 30% of the
aggregate consideration paid in cash. The transaction terms also assume Euronext
will pay to its shareholders its ordinary dividend of (euro)1 per share this
year and its previously announced extraordinary dividend of (euro)3 per share.

Under the terms of the proposal, the common stock of the combined company will
be listed on both the New York Stock Exchange and Euronext, and traded in the
local currency on each market.

ITEM 9.01  FINANCIAL STATEMENTS AND EXHIBITS

(d)     EXHIBITS

Exhibit Number      Description

99.1                Press release entitled "NYSE Group, Inc. Proposes Historic
                    Business Combination With Euronext N.V.," dated May 22,
                    2006.

99.2                Letter from John A. Thain, Chief Executive Officer of NYSE
                    Group, and Marshall N. Carter, Chairman of the Board of
                    Directors of NYSE Group, to Jan-Michiel Hessels, Chairman of
                    the Supervisory Board of Euronext N.V., and Mr.
                    Jean-Francois Theodore, Chief Executive Officer and Chairman
                    of the Managing Board of Euronext N.V., dated May 22, 2006.

99.3                Slide presentation made available in connection with
                    investor conference call regarding the proposed NYSE
                    Group/Euronext N.V. business combination held on May 22,
                    2006 (solely furnished and not filed for purposes of Item
                    8.01).

99.4                Transcript of investor conference call regarding the
                    proposed NYSE Group/Euronext N.V. business combination, held
                    on May 22, 2006 (solely furnished and not filed for purposes
                    of Item 8.01).






                                   SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the
registrant has duly caused this report to be signed on its behalf by the
undersigned hereunto duly authorized.


                                NYSE GROUP, INC.

Dated: May 22, 2006             By:   /s/ Richard P. Bernard
                                   ---------------------------------------------
                                   Name:    Richard P. Bernard
                                   Title:   Executive Vice President and
                                            General Counsel




















                                  EXHIBIT INDEX


Exhibit Number      Description

99.1                Press release entitled "NYSE Group, Inc. Proposes Historic
                    Business Combination With Euronext N.V.," dated May 22,
                    2006.

99.2                Letter from John A. Thain, Chief Executive Officer of NYSE
                    Group, and Marshall N. Carter, Chairman of the Board of
                    Directors of NYSE Group, to Jan-Michiel Hessels, Chairman of
                    the Supervisory Board of Euronext N.V., and Mr.
                    Jean-Francois Theodore, Chief Executive Officer and Chairman
                    of the Managing Board of Euronext N.V., dated May 22, 2006.

99.3                Slide presentation made available in connection with
                    investor conference call regarding the proposed NYSE
                    Group/Euronext N.V. business combination held on May 22,
                    2006 (solely furnished and not filed for purposes of Item
                    8.01).

99.4                Transcript of investor conference call regarding the
                    proposed NYSE Group/Euronext N.V. business combination, held
                    on May 22, 2006 (solely furnished and not filed for purposes
                    of Item 8.01).







This Current Report on Form 8-K (including information included or incorporated
by reference herein), the press release, the presentation materials and
statements that NYSE Group, Inc. ("NYSE Group") has made during the conference
call/webcast may contain, among other things, certain forward-looking
statements, which involve a number of risks and uncertainties. NYSE Group
cautions readers that any forward-looking information is not a guarantee of
future performance and that actual results could differ materially from those
contained in the forward-looking information. Such forward-looking statements
include, but are not limited to, statements about the benefits of the business
combination transaction involving NYSE Group and Euronext, including future
financial and operating results, the new company's plans, objectives,
expectations and intentions and other statements that are not historical facts.
Additional risks and factors are identified in NYSE Group's filings with the
U.S. Securities Exchange Commission (the "SEC"), including its Report on Form
10-K for the fiscal year ending December 31, 2005 which is available on NYSE
Group's website at http://www.nyse.com and the SEC's website at SEC's Web site
at www.sec.gov. The parties undertake no obligation to publicly update any
forward-looking statement, whether as a result of new information, future events
or otherwise.

ADDITIONAL INFORMATION ABOUT THIS TRANSACTION
---------------------------------------------
In connection with the proposed business combination transaction, NYSE Group
expects that a newly formed holding company will file with the SEC a
Registration Statement on Form S-4 that will include a proxy statement of NYSE
Group that also constitutes a prospectus of the newly formed holding company.
NYSE Group will mail the proxy statement/prospectus to its stockholders and the
prospectus will be mailed to Euronext shareholders.

INVESTORS AND SECURITY HOLDERS ARE URGED TO READ THE PROXY STATEMENT/PROSPECTUS
REGARDING THE PROPOSED BUSINESS COMBINATION TRANSACTION IF AND WHEN IT BECOMES
AVAILABLE BECAUSE IT WILL CONTAIN IMPORTANT INFORMATION.

You may obtain a free copy of the proxy statement/prospectus (if and when
available) and other related documents filed by NYSE Group and the newly formed
holding company with the SEC at the SEC's Web site at www.sec.gov. The proxy
statement/prospectus (if and when it becomes available) and the other documents
may also be obtained for free by accessing NYSE Group's Web site at
http://www.nyse.com.

NYSE Group and its directors and executive officers and other members of
management and employees may be deemed to be participants in the solicitation of
proxies from NYSE Group stockholders in respect of the proposed business
combination transaction. You can find information about NYSE Group's executive
officers and directors in NYSE Group's definitive proxy statement filed with the
SEC on April 11, 2006. You can obtain free copies of these documents and of the
proxy statement prospectus (when it becomes available) from NYSE Group by
contacting its investor relations department.

Additional information regarding the interests of such potential participants
will be included in the proxy statement/prospectus and the other relevant
documents filed with the SEC when they become available. This document shall not
constitute an offer to sell or the solicitation of an offer to buy any
securities, nor shall there be any sale of securities in any jurisdiction in
which such





offer, solicitation or sale would be unlawful prior to registration or
qualification under the securities laws of any such jurisdiction. No offering of
securities shall be made except by means of a prospectus meeting the
requirements of Section 10 of the U.S. Securities Act of 1933, as amended.