Filed by NYSE Group, Inc.
              Pursuant to Rule 425 under the Securities Act of 1933, as amended,
                                 and deemed filed pursuant to Rule 14a-12 of the
                                     Securities Exchange Act of 1934, as amended
                                              
                                                              Subject Companies:
                                                   New York Stock Exchange, Inc.
                                                      Archipelago Holdings, Inc.
                                                 (Commission File No. 001-32274)

                                                                                
                                                          Date: November 8, 2005
                                                                                
On November 8, 2005, the New York Stock Exchange, Inc. issued the following
bulletin to its members:

                                      * * *

                           Special Membership Bulletin



[NEW YORK STOCK EXCHANGE LOGO]

NYSE STATEMENT REGARDING MOTION FOR INJUNCTION AGAINST NYSE-ARCHIPELAGO MERGER

A small handful of Members today took steps to deny the vast majority of NYSE
Members their right to vote on the merger. This action is wrong and is an
affront to shareholder democracy, and is contrary to all previous statements
this group has made. It threatens both the NYSE's future and America's
leadership position in global capital markets. A vote for the merger is a vote
for the future of the NYSE. We will continue to vigorously defend the right of
our Members to vote.

The proposal as recommended by the NYSE's independent Board of Directors is fair
and equitable. The Board has provided abundant information and transparency on
this transaction, including a summary of the plaintiff's allegations in our
proxy statement. The prospect of this deal has more than tripled the value of
NYSE seats this year. It significantly benefits our Members, while placing the
Exchange on firm ground for future growth and value creation. It will transform
the NYSE into a for-profit, publicly traded company with a broad product mix and
the ability to compete with any capital marketplace in the world. We will
continue to vigorously pursue this transaction.



November 8, 2005


                                     (OVER)



          IMPORTANT ACQUISITION INFORMATION WITH RESPECT TO THE MERGER

In connection with the proposed merger of the New York Stock Exchange, Inc.
("NYSE") and Archipelago Holdings, Inc. ("Archipelago"), NYSE Group, Inc. has
filed a registration statement on Form S-4 with the Securities and Exchange
Commission (SEC) containing a joint proxy statement/prospectus regarding the
proposed transaction. The parties have filed other publicly available relevant
documents concerning the proposed transaction with the SEC. The SEC declared the
Registration Statement effective on November 3, 2005.

NYSE MEMBERS AND ARCHIPELAGO STOCKHOLDERS ARE URGED TO READ THE FINAL JOINT
PROXY STATEMENT/PROSPECTUS REGARDING THE PROPOSED TRANSACTION BECAUSE IT WILL
CONTAIN IMPORTANT INFORMATION. NYSE members and Archipelago stockholders can
obtain a free copy of the final joint proxy statement/prospectus, as well as
other filings containing information about NYSE and Archipelago without charge,
at the SEC's website (http://www.sec.gov). Copies of the final joint proxy
statement/prospectus can also be obtained, without charge, once they are filed
with the SEC, by directing a request to the Office of the Corporate Secretary,
NYSE, 11 Wall Street, New York 10005, 212-656-2061 or to Archipelago, Attention:
Investor Relations, at 100 S. Wacker Drive, Suite 1800, Chicago, Illinois 60606
or calling (888) 514-7284.

The NYSE, Archipelago and their respective directors and executive officers and
other members of management and employees may be deemed to be participants in
the solicitation of proxies from Archipelago stockholders in respect of the
proposed transaction. Information regarding Archipelago's directors and
executive officers is available in Archipelago's proxy statement for its 2005
annual meeting of stockholders, dated March 31, 2005.

Additional information regarding the interests of such potential participants
will be included in the joint proxy statement/prospectus and the other relevant
documents filed with the SEC when they become available. This correspondence
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 Securities Act of 1933, as amended.

                           FORWARD-LOOKING STATEMENTS
Certain statements in this correspondence may contain forward-looking
information regarding the NYSE and Archipelago and the combined company after
the completion of the transactions that are intended to be covered by the safe
harbor for "forward-looking statements" provided by the Private Securities
Litigation Reform Act of 1995. These statements include, but are not limited to,
the benefits of the business combination transaction involving NYSE and
Archipelago, including future financial and operating results, the new company's
plans, objectives, expectations and intentions and other statements that are not
historical facts. Such statements are based upon the current beliefs and
expectations of NYSE's and Archipelago's management and are subject to
significant risks and uncertainties. Actual results may differ from those set
forth in the forward-looking statements.

The following factors, among others, could cause actual results to differ from
those set forth in the forward-looking statements: the ability to obtain
governmental approvals of the transaction on the proposed terms and schedule;
the failure of NYSE members or Archipelago shareholders to approve the
transaction; the risk that the businesses will not be integrated successfully;
the risk that the cost savings and any other synergies from the transaction may
not be fully realized or may take longer to realize than expected; disruption
from the transaction making it more difficult to maintain relationships with
customers, employees or suppliers; competition and its effect on pricing,
spending, third-party relationships and revenues; social and political
conditions such as war, political unrest or terrorism; general economic
conditions and normal business uncertainty. Additional risks and factors are
identified in Archipelago's filings with the Securities Exchange Commission,
including its Report on Form 10-K for the fiscal year ending December 31, 2004
which is available on Archipelago's website at http://www.Archipelago.com, and
the Registration Statement on Form S-4 filed by NYSE Group, Inc. with the SEC on
July 21, 2005 (and amended on September 24, 2005, October 24, 2005 and November
3, 2005).

You should not place undue reliance on forward-looking statements, which speak
only as of the date of this document. Except for any obligation to disclose
material information under the Federal securities laws, none of the NYSE,
Archipelago or the combined company after the completion of the transactions
undertake any obligation to release publicly any revisions to any
forward-looking statements to reflect events or circumstances after the date of
this document.