NYSE Group / Korea Futures Exchange / Pacific Exchange / Philadelphia Stock Exchange / Hong Kong Exchanges / Chicago Board Options Exchange / Clearnet London Metal Exchange Ltd. / The Options Clearing Corporation Inc. / PCX Equities / Tel-Aviv Stock Exchange / Singapore Exchange / Istanbul Stock Exchange / Turkish Derivatives Exchange Inc. / NOS Clearing ASA / Tokyo Stock Exchange Wiener Börse AG / Clearing Bursa Malaysia Derivatives Canadian Derivatives Clearing Corp. / New York Mercantile Exchange / PCX Holding / Archipelago Holdings / Korean Stock Exchange / Bombay Stock Exchange / The Clearing Corporation / Borsa Italiana SpA / ICE Futures International Securities Exchange / /
International Options Market Association / New York Board of Trade / International Options Markets Association / IOMA / World Federation of Exchanges / /