MDF Metropolitan Health Networks Common Stock

The Archipelago Exchange(SM) (ArcaEx(R)) Announces Dual Listing of Metropolitan Health Networks CHICAGO, March 7 /PRNewswire-FirstCall/ -- The Archipelago Exchange(SM) (ArcaEx(R)), the world's largest fully-electronic stock exchange, today announced that Metropolitan Health Networks (AMEX:MDF), a leading regional provider of healthcare services, has dually listed on ArcaEx, a facility of the Pacific Exchange. "Metropolitan Health Networks is a great addition to the roster of Archipelago Exchange-listed companies," said Jerry Putnam, CEO of Archipelago. "ArcaEx provides an ideal listing venue for companies looking to expand their exposure and visibility among a broad range of investors." "Listing on the nation's first totally open all-electronic stock exchange is an exciting event for us and our shareholders," commented Michael Earley, Chairman and Chief Executive Officer of Metropolitan Health Networks. "We believe our dual listing on ArcaEx, an extremely efficient and well-connected exchange, will help us gain exposure and increase recognition across the investment community." Metropolitan Health Networks is the third dual listing on ArcaEx in 2005, following insurer AIG and electronic options brokerage optionsXpress. In addition to providing the advantages of fully-electronic trading, ArcaEx enables NYSE- , Amex- and Nasdaq-listed companies and their investors to reap the benefits of ArcaEx's investor focused market structure. ArcaEx operates as an all-electronic auction market, with an open limit order book matching buyers and sellers directly based on simple price and time priority, leveling the playing field for all market participants. Currently over 230 companies are listed by PCX for trading on ArcaEx. In addition to its own listings, the exchange trades all NYSE, Nasdaq, and Amex listed stocks. Archipelago Holdings, Inc., the parent company of ArcaEx, announced on January 3, 2005 that the company has entered into a definitive agreement to acquire PCX Holdings, Inc., parent company of the Pacific Exchange and PCX Equities, Inc. About ArcaEx Archipelago Holdings (PCX:AX) operates The Archipelago Exchange SM (ArcaEx(R)) the first totally open all-electronic stock exchange in the United States. ArcaEx trades all Nasdaq-listed equity securities and exchange listed equity securities, including those listed on the New York Stock Exchange(R), American Stock Exchange(R), and Pacific Exchange(R). In addition to offering core execution services, ArcaEx provides corporate clients with listing services and innovative data products. In 2004, Archipelago launched ArcaVision to provide corporate and trading clients with more transparent market data, analytical tools and access to market-wide and ArcaEx specific trading information. Archipelago Holdings completed its initial public offering in August 2004. For more information please visit http://www.arcaex.com/. About Metropolitan Health Networks, Inc. Metropolitan is a growing healthcare organization in Florida that provides comprehensive healthcare services for Medicare Advantage members and other patients in South and Central Florida. To learn more about Metropolitan Health Networks, Inc. please visit its website at http://www.metcare.com/. Forward-Looking Statements Certain statements in this press release may contain forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. These statements are based on Archipelago's current expectations and involve risks and uncertainties that could cause Archipelago's actual results to differ materially from those set forth in the statements. There can be no assurance that such expectations will prove to be correct. Factors that could cause Archipelago's results to differ materially from current expectations include: general economic and business conditions, industry trends, competitive conditions, regulatory developments as well as other risks or factors identified in Archipelago's Registration Statement on Form S-1, dated August 12, 2004, and Quarterly Report on Form 10-Q, dated November 9, 2004, each of which was filed with the SEC and is available on Archipelago's website: http://www.archipelago.com/. Contact: Archipelago Margaret Nagle 312-442-7083 DATASOURCE: The Archipelago Exchange CONTACT: Margaret Nagle of Archipelago, +1-312-442-7083 Web site: http://www.archipelago.com/ http://www.metcare.com/ http://www.arcaex.com/

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