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Amex Vendor Alert #2003-10 - April 25, 2003
New Indexes DYI & DYO


Dynamic Market Intellidex Index (DYI)
The Dynamic Market Intellidex Index (DYI) is a modified equal dollar weighted index composed of stocks selected quarterly based on a proprietary quantitative method. The components of the Dynamic Market Intellidex Index are selected from the universe of the two thousand largest stocks by market capitalization of U.S. headquartered companies listed for trading on the American Stock Exchange, New York Stock Exchange or quoted on the Nasdaq National Market. The DYI index was established with a base value of 1000.00 at the close on February 28, 2003.

Dynamic OTC Intellidex Index (DYO)
The Dynamic OTC Intellidex Index (DYI) is a modified equal dollar weighted index composed of stocks selected quarterly based on a proprietary quantitative method. The components of the Dynamic OTC Intellidex Index are selected from the universe of the one thousand largest stocks by market capitalization of U.S. headquartered companies quoted on the Nasdaq National Market. The DYO index was established with a base value of 1000.00 at the close on February 28, 2003.

If you have any questions regarding this notice, please contact Amex Market Data Services via e-mail at marketdataproducts@amex.com.