Mondo Visione Worldwide Financial Markets Intelligence

FTSE Mondo Visione Exchanges Index:

The Philadelphia Stock Exchange To Begin Trading Two Additional New Options On Thursday, October 18

Date 17/10/2007

The Philadelphia Stock Exchange (PHLX) announced today that it will begin to trade two additional new options on October 18, 2007. Both options were allocated to Group One Ltd:

Cleveland BioLabs, Incorporated (option/stock symbol: UDC/CBLI) will trade on the January expiration cycle with initial expiration months of October, November, January and April. Position and exercise limits have been set at 250,000 contracts.

Power Integrations, Inc. (option/stock symbol: UIJ/POWI) will trade on the January expiration cycle with initial expiration months of October, November, January and April. Position and exercise limits have been set at 25,000 contracts.

The Philadelphia Stock Exchange was founded in 1790. The PHLX trades over 7,000 stocks, 2,639 equity options, 17 sectors index options and currency options and futures. For more information about the PHLX and its products, visit www.phlx.com.