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American Stock Exchange News Release

Exchange Release

Media Contact: Catherine Chantharaj
American Stock Exchange
212-306-1689 / catherine.chantharaj@amex.com

AMERICAN STOCK EXCHANGE REPORTS AN INCREASE IN SHORT INTEREST

New York, NEW YORK, April 21, 2008 — The American Stock Exchange® (Amex®) 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.

In the year ago period, short interest totaled 865,833,907 (adjusted).

The April short interest position reflects short interest reported by all broker-dealers (not only Amex member firms) in Amex-listed stocks. A short position of 5,000 or more shares existed in 858 issues. Some short position was shown in 1,402 issues.

The attached short interest report was compiled by the Amex on the basis of information obtained from its member and non-member organizations covering all securities dealt in on the Exchange on both round and odd-lots.

Adjusted short interest for the preceding 12 months is shown below:

March 31, 2008	1,267,154,289	October 31, 2007	1,022,353,131
March 14, 2008	1,318,018,828	October 15, 2007	989,803,872
February 29, 2008	1,239,338,377	September 28, 2007	1,004,190,347
February 15, 2008	1,173,888,724	September 14,2007	1,030,629,307
January 31, 2008	1,099,855,774	August 15, 2007	1,194,902,117
January 15, 2008	1,125,171,967	July 13, 2007	1,097,414,533
December 31, 2007	1,095,365,559	June 15, 2007	1,092,317,747
December 14, 2007	1,083,504,928	May 15, 2007	940,482,902
November 30, 2007	1,128,730,384	April 13, 2007	865,833,907
November 15, 2007	1,141,428,683

Changes in the Amex's Short Interest Reporting:

Please be advised that there is a new way of accessing short interest information for the Amex through www.amexdata.com. Access to the site will be in addition to the standard Amex press release on short interest. The short interest data will be available to registered members of the media at www.amexdata.com by 2pm on the publication date. If you have any questions, please contact Amex Market Data Customer Service at 212-306-1340 or marketdataproducts@amex.com.

About American Stock Exchange
The American Stock Exchange^® (Amex^®) offers trading across a full range of equities, options and exchange traded funds (ETFs), including structured products and HOLDRS^SM. In addition to its role as a national equities market, the Amex is the pioneer of the ETF, responsible for bringing the first domestic product to market in 1993. Leading the industry in ETF listings, the Amex lists 388 ETFs to date. The Amex is also one of the largest options exchanges in the U.S., trading options on broad-based and sector indexes as well as domestic and foreign stocks.