THE PHILADELPHIA STOCK EXCHANGE ANNOUNCES
JUNE VOLUME


“PHLX CONTINUES AS THE THIRD LARGEST MARKETPLACE FOR OPTIONS”

PHILADELPHIA- June 10, 2006 - The Philadelphia Stock Exchange announced today that equity option volume increased 77.96% when 19,862,026 contracts traded compared to the same year-ago period when 11,160,829 contracts traded. Equity option volume in June declined 18.56% compared to the previous month when 24,387,765 contracts traded. The Exchange garnered 13.13 % equity options market share in June making it the third largest market center for options for the eighth month in a row. Market share without ex-dividend volume of 19,004,132 contracts was 12.63%.

Sectors index options volume in June increased 59.39% when 870,374 contracts traded compared to the same year-ago period when 546,071 contracts traded. Volume in sectors index options in June decreased 17.76 % compared to 1,058,319 contracts traded in the previous month.
Equity volume for June decreased 36.78% when 68,435,260 shares traded compared the same year-ago period when 108,257,009 shares traded. Equity volume for June decreased 13.64% compared to the previous month when 79,240,947 shares traded.
Trading volume in the customized and standardized currency options for June totaled 10,488 contracts, a decrease of 18.04% compared to the same year-ago period when 12,797 contracts traded. Volume in June decreased 39.11% compared to the previous month when 17,224 contracts traded.

PHLX currently lists options on 19 sectors, among them are: PHLX/KBW Bank Index (BKX^SM); KBW Insurance Index (KIX^SM); KBW Capital Markets Index (KSX^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); PHLX World Energy Index^SM (XWE^SM); SIG Cable, Media & Entertainment Index^TM (SCQ^SM); SIG Coal Producers Index^TM (SCP^SM); SIG Oil & Exploration Index^TM (EPX^SM); SIG Semiconductor Device Index^TM (SDL^SM); the SIG Steel Producers Index^TM (STQ^SM).

The PHLX now trades iShares FTSE/Xinhua China 25 Index Fund (FXI^SM). This is the first time investors in the United States and abroad will be 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.
The Philadelphia Stock Exchange was founded in 1790. The PHLX trades 1,943 stocks, more than 2,200 equity options, 19 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.
SIG Cable, Media and Entertainment Index™ is a trademark of Susquehanna Indices, LLP.
SCQ^SM is a service mark of the Philadelphia Stock Exchange.

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