SOURCE: Pacific Exchange Inc.

June 28, 2005 11:32 ET

Pacific Exchange to Trade Options in Pennies

Move Will Benefit Options Investors

SAN FRANCISCO, CA -- (MARKET WIRE) -- June 28, 2005 -- The Pacific Exchange (PCX) announced today that it will begin quoting and trading all listed options in penny increments. Currently, all options exchanges are required to quote in nickels and dimes. The change requires approval by the Securities and Exchange Commission. The Exchange will submit the necessary rule filing soon, and hopes to receive expedited approval from the SEC so that it can begin trading options in pennies in the fourth quarter of 2005.

"Quoting and trading options in pennies will benefit investors enormously," said PCX Chairman and CEO Philip D. DeFeo. "It will make the options markets more efficient and more transparent. We believe spreads should narrow in many issues, more closely aligning the best execution interests of liquidity providers and customers. More orders will be directed to markets with the most aggressive quotes. Penny quotes prepare the markets for the future -- for the time when investors will trade multiple products on a single electronic platform, clearing and settling all trades in pennies on comprehensive risk-management systems. When all instruments are traded in pennies, it will be easier to develop better integrated risk management products."

When the equity and options markets converted from fractions to decimals in 2001, stocks were quoted in pennies but options were limited to nickels and dimes, out of concern that additional quotation traffic would overwhelm the industry's systems and infrastructure. "That was the prudent approach at the time," said DeFeo. "We wanted investors to be the beneficiaries of decimalization, not its victims. But all of the exchanges, firms, and utilities have greatly expanded capacity in the past several years, with additional upgrades planned for this year and next."

"Our rule filing will include provisions to discourage frivolous quoting, and we will implement additional quote mitigation measures to prevent gridlock," DeFeo continued. "The bottom line: this is the right thing to do for public investors. If it takes additional capacity, it is our obligation as marketplace providers to ensure that it is available."

In January, the PCX announced plans to be acquired by Archipelago Holdings, Inc. The shareholders of PCX Holdings, Inc., parent company of the Pacific Exchange, will review that proposal in the third quarter of 2005. Archipelago subsequently announced plans to merge with the New York Stock Exchange.

Important Acquisition Information

In connection with the proposed acquisition of PCX Holdings and its subsidiaries by Archipelago Holdings, the parties intend to file relevant materials with the SEC, including a registration statement on Form S-4. Such documents, however, are not currently available. INVESTORS ARE URGED TO READ THE REGISTRATION STATEMENT REGARDING THE PROPOSED TRANSACTION WHEN IT BECOMES AVAILABLE, BECAUSE IT WILL CONTAIN IMPORTANT INFORMATION. Investors will be able to obtain a free copy of the registration statement, as well as other filings containing information about Archipelago, PCX Holdings, the Pacific Exchange and PCX Equities without charge, at the SEC's website (http://www.sec.gov) once such documents are filed with the SEC. Copies of the registration statement will also be available, without charge, once they are filed with the SEC by directing a request to Archipelago, Attention: Investor Relations, at 100 South Wacker Drive, Suite 1800, Chicago, Illinois 60606 or calling (888) 514-7284 , or by directing a request to the Shareholder Services Department of PCX Holdings at 115 Sansome Street, San Francisco, California 94104 or calling (415) 393-4114.

This communication 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.

Important Acquisition Information with Respect to the Archipelago Holdings-NYSE Merger

In connection with the proposed merger of Archipelago and the NYSE, the parties intend to file relevant materials with the SEC, including a joint proxy statement/prospectus regarding the proposed transaction. Such documents, however, are not currently available. INVESTORS ARE URGED TO READ THE JOINT PROXY STATEMENT/PROSPECTUS REGARDING THE PROPOSED TRANSACTION WHEN IT BECOMES AVAILABLE, BECAUSE IT WILL CONTAIN IMPORTANT INFORMATION. Investors will be able to obtain a free copy of the joint proxy statement/prospectus, as well as other filings containing information about Archipelago and the NYSE without charge, at the SEC's website (http://www.sec.gov) once such documents are filed with the SEC. Copies of the joint proxy statement/prospectus can also be obtained, without charge, once they are filed with the SEC, by directing a request to Archipelago, Attention: Investor Relations, at 100 S. Wacker Drive, Suite 1800, Chicago, Illinois 60606 or calling (888) 514-7284.

Archipelago, NYSE 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 filing (including the exhibits hereto) 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

Statements in this communication may contain "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995. Such forward-looking statements are based on current plans, estimates and expectations, and are not guarantees of future performance. They are based on management's expectations that involve a number of business risks and uncertainties, any of which could cause actual results to differ materially from those expressed in or implied by the forward-looking statements. Archipelago undertakes no obligation to publicly update or revise any forward-looking statement. The risks and uncertainties relating to the forward-looking statements in this communication include general economic and business conditions, industry trends, competitive conditions, regulatory developments as well as other factors described under the caption "Risk Factors" and "Forward-Looking Statements" in Archipelago's Registration Statement on Form S-1, dated August 12, 2004, and Annual Report on Form 10-K, dated March 22, 2005, each of which was filed with the U.S. Securities and Exchange Commission and is available on Archipelago's website at http://www.archipelago.com.

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