THE PHILADELPHIA STOCK EXCHANGE TO BEGIN TRADING TWO NEW OPTIONS ON TUESDAY, DECEMBER 21

For more information, contact Barbara Sorid at 215-496-5200 or by e-mail

PHILADELPHIA – Dec. 20, 2004 - The Philadelphia Stock Exchange (PHLX) announced today that it will begin trading two new options on Tuesday, December 21.

Blackboard, Inc. (Nasdaq symbol: BPU/BBBB) has been allocated to Market Street Securities. It will trade on the January expiration cycle with initial expiration dates of January, February, April and July. Position and Exercise limits have been set at 2,250,000 shares.

Leadis Technology, Inc. (Nasdaq symbol: DUQ/LDIS) has been allocated to Group One Ltd. It will trade on the January expiration cycle with initial expiration dates of January, February, April and July. Position and Exercise limits have been set at 2,250,000 shares.

The Philadelphia Stock Exchange was founded in 1790. The PHLX trades 2,000 stocks, 1,500 equity options, 18 sectors index options and currency options and futures. For more information about the PHLX and its products, visit www.phlx.com.

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