THE PHILADELPHIA STOCK EXCHANGE ANNOUNCES
MAY VOLUME

PHILADELPHIA – June 6, 2007 - The Philadelphia Stock Exchange announced today that equity option volume in May rose 22.81% when 29,951,482 contracts compared to the same year-ago period when 24,387,765 contracts traded. Equity option volume in May increased 15.98% compared the previous month when 25,824,063 contracts traded.

Market share for equity options in May was 14.47% when 29,951,482 contracts traded. PHLX market share in May without ex-dividend volume was 12.92 % when 26,743,783 contracts traded.

Equity volume for May increased 10.77% when 125,308,868 shares traded compared the previous month when 113,124,578 shares traded. Equity volume for May increased 58.14% compared to the same year-ago period when 79,422,957 shares traded.

Volume on two newly traded World Currency Options (WCOs) rose 3.54% in May when 27,520 contracts traded compared to 26,580 contracts traded the previous month.

WCOs ended May with an open interest record of 53,674 contracts.

Trading volume in the customized and standardized currency options for May totaled 6,648 contracts, a decrease of 48.36% compared to the previous month when 12,874 contracts traded.

Volume in May decreased 61.40% compared to the same year-ago period when 17,224 contracts traded.

Sectors index options volume for May increased 13.99% when 574,749 contracts traded compared to the previous month when 504,198 contracts traded. Volume in sectors index options in May declined 45.69% compared to same year-ago period when 1,058,319 contracts traded

PHLX currently lists options on 17 sectors, among them are: KBW Bank Index (BKX^SM); KBW Mortgage Finance Index (MFX^SM); KBW Regional Banking Index (KRX^SM); PHLX Drug Sector^SM (RXS^SM); PHLX Gold/Silver Sector^SM (XAU^SM); PHLX Oil Service Sector^SM (OSX^SM); PHLX Defense Sector^SM (DFX^SM); TheStreet.com Internet Sector (DOT^SM); PHLX Semiconductor Sector^SM (SOX^SM); PHLX Utility Sector^SM (UTY^SM); PHLX Housing Sector^SM (HGX^SM); SIG Coal Producers Index™ (SCP^SM); SIG Oil & Exploration Index™ (EPX^SM); and the SIG Steel Producers Index™ (STQ^SM); and Hapoalim American Israeli Index™ (HAI).

The Philadelphia Stock Exchange was founded in 1790. The PHLX trades 7,000 stocks, 2,486 equity options, 17 sectors index options, and currency options and futures. For more information about the PHLX and its products, visit www.phlx.com.

SIG Investment Managers Index™ is a trademark of Susquehanna Indices, LLP.
SMQ^SM is a service mark of the Philadelphia Stock Exchange.

The PHLX trades iShares FTSE/Xinhua China 25 Index Fund (FXI^SM). This is the first time investors in the United States and abroad are able to track the performance of the largest and most widely traded Chinese stocks by mirroring the FTSE/Xinhua China 25 Index, which captures the top Chinese stocks available to international investors by total market capitalization.

SIG Casino Gaming Index™, SIG Semiconductor Capital Equipment Index™ and SIG Semiconductor Device™ Index are trademarks of SIG Indices, LLLP. SGV^SM, SEZ^SM and SDL^SM are service marks of the Philadelphia Stock Exchange, Inc.