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CBOE Interest Rate Option Products To Close Early Today In Conjunction With Related Markets. All Other CBOE Products Trading On Regular Schedule

Date 15/08/2003

The Chicago Board Options Exchange (CBOE) announced that trading in its interest rate option products will close today at 1:00 p.m. (CDT), in conjunction with the close of other interest rate markets.

Trading in all other CBOE products will close at the usual times.

CBOE, regulated by the Securities and Exchange Commission (SEC), is the creator of listed options, and the world's largest options marketplace. For additional information about the CBOE and its products, visit the CBOE website at www.cboe.com.