The American Stock Exchange announced the launch of Fixed Return OptionsSM (FROsSM), which will begin trading on May 8. FROs are "binary" options on popular equities and exchange traded funds (ETFs), including QQQQs, SPDRs and Google, that will pay a fixed, cash amount of $100.00 upon settlement "in-the-money."

The American Stock Exchange announced that it has launched trading in two new exchange traded funds: UltraShort Lehman 7-10 Year Treasury ProShares (Amex: PST) and UltraShort Lehman 20+ Year Treasury ProShares (Amex: TBT) by ProShare Advisors LLC (ProShares). ProShares now offers investors a choice of 62 ETFs, all of which are listed on the Amex.

The American Stock Exchange member and non-member organizations today reported short interest of 1,294,407,888 shares as of the April 15, 2008 settlement date, an increase of 27,253,599 from the 1,267,154,289 (adjusted) shares reported on March 31, 2008. The figure represents trades through April 10, 2008.

New York, April 16, 2008 — The American Stock Exchange lists the common stock of U.S. Geothermal, Inc. under the ticker symbol HTM.

The American Stock Exchange listed the common stock of CIBT Education Group Inc. under the ticker symbol CPT. CIBT Education Group Inc. is an educational and marketing organization headquartered in Vancouver, British Columbia, Canada.

The American Stock Exchange lists the common stock of New Generation Biofuels Holdings, Inc. under the ticker symbol GNB.

The American Stock Exchange listed the common stock of Gran Tierra Energy, Inc. under the ticker symbol GTE.

The American Stock Exchange member and non-member organizations today reported short interest of 1,269,416,486 shares as of the March 31, 2008 settlement date, a decrease of 48,602,342 from the 1,318,018,828 (adjusted) shares reported on March 14, 2008. The figure represents trades through March 26, 2008.

The American Stock Exchange launched trading in the Bear Stearns Current Yield Fund (Amex: YYY) managed by Bear Stearns Asset Management (BSAM). YYY is the first actively-managed exchange traded fund (ETF) to become available to investors.

The American Stock Exchange listed the common stock of Northern Oil & Gas, Inc. under the ticker symbol NOG.

The American Stock Exchange announced that it launched trading in the SPDR DB International Government Inflation-Protected Bond ETF (Amex: WIP) issued by State Street Global Advisors (SSgA).

The American Stock Exchange member and non-member organizations today reported short interest of 1,322,314,562 shares as of the March 14, 2008 settlement date, an increase of 82,976,185 from the 1,239,338,377 (adjusted) shares reported on February 29, 2008. The figure represents trades through March 11, 2008.