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The Philadelphia Stock Exchange To Begin Trading The Newly Revised PHLX Semiconductor Sector<SUP>sm</SUP> Index (SOX<SUP>sm</SUP>) Friday, December 3

Date 02/12/2004

The Philadelphia Stock Exchange (PHLX) announced today that the newly revised PHLX Semiconductor Sector Index (SOX) will begin trading on Friday, December 3. Susquehanna Investment Group is the specialist for the Index.

Freescale Semiconductor, Inc. (FSL/B), Infineon Technologies AG (IFX), and Marvell Technology Group (MRVL) were added while Motorola, Inc. (MOT) and LSI Logic Corp. (LSI) were deleted.

" These changes solidify SOX as the bellwether Semiconductor Sector Index for traders and investors alike," said Daniel R. Carrigan, PHLX’s vice president of new product development. "PHLX provides a platform for deep and liquid markets.” he said. “As a result, SOX ranks as the 8th most traded Index Option in the US year- to-date."

According to Carrigan, the new makeup of the Index reflects leadership changes in the semiconductor industry.

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.