BANC OF AMERICA SECURITIES LLC
BBP INCORPORATED 
BEAR, STEARNS & CO. INC. 
BEAR, STEARNS SECURITIES CORP.
BEDROCK TRADING 
BELLAMAH, NEUHAUSER & BARRETT, INC.
BENTON PARTNERS 
BERNARD L. HIRSH, INC. 
BHC TRADING CORP. 
BINARY TRADERS, LP 
BIRCHWOOD SECURITIES CORPORATION 
BLOOM STALOFF CORPORATION 
BLOOMBERG TRADEBOOK LLC 
BMO NESBITT BURNS CORP 
BNY CLEARING SERVICES LLC 
BNY ESI & CO., INC. 
BONNER INVESTMENT GROUP PARTNERSHIP, L.P.
BOTTA CAPITAL MANAGEMENT, LLC
BRANCH, CABELL & CO., INC. 
BRB PARTNERS, L.P. 
BROWN & COMPANY SECURITIES CORPORATION 
BULLDOG TRADING LLC
BURKE, LAWTON, BREWER & BURKE 

CANADIAN DOLLAR OPTIONS LIMITED 
CARPATHIAN FUND I L.P. 
CARTHER FINANCIAL, LP
CAVU SECURITIES, INC. 
CC SECURITIES, LDC
CHARLES H. ROSS, INC.
CHARLES SCHWAB & CO. INC. 
CIBC WORLD MARKETS CORP. 
COMFORT CAPITAL PARTNERS, LP 
CONTEXT CONVERTIBLE ARBITRAGE FUND, LP 
CREDIT SUISSE FIRST BOSTON CORPORATION 
CROIX SECURITIES, INC. 

D TRADE, LP  PENN MONT SECURITIES 
D&D SECURITIES, INC. 
DARK STAR TRADING, L.P. 
DAVID LERNER ASSOCIATES, INC. 
DAX PARTNERS L.P. 
DAYTRADING.NET LLC 
DELAWARE SECURITIES, INC. 
DEUTSCHE BANC SECURITIES INC. 
DIAMOND CARTER SECURITIES L.P. 
DL SECURITIES, LTD. 
DONALDSON, LUFKIN & JENRETTE SECURITIES 
DONNAN OPTIONS CORPORATION 
DSX INC. 

E*TRADE SECURITIES INCORPORATED 
EAS TRADING GROUP
E-KNOX TRADING, L.P. 
EMPIRE OPTIONS CORPORATION 
EQUITEC PROPRIETARY MARKETS, LLC 
EQUITEC SPECIALISTS, LLC
ETG PR0PRIETARY TRADING LLC 
FAHNESTOCK & CO. INC.
FAIRVIEW TRADING INC. 
FIRST CLEARING CORPORATION
FIRST OPTIONS OF CHICAGO, INC. 
FIRST UNION SECURITIES, INC.
FISERV SECURITIES, INC. 
FLEET SECURITIES, INC. 
FREDERICK S. MARTIN & CO. 
FULCRUM PARTNERS, L.L.C. 

G&K PARTNERS, LTD. 
G.P. SECURITIES CORP. 
G-BAR LIMITED PARTNERSHIP 
GARGOYLE STRATEGIC INVESTMENTS, LLC 
GARY R. SMOLEN & CO., INC. 
GATEWAY PARTNERS, LLC
GDS SECURITIES, INC. 
GENERIC TRADING OF PHILADELPHIA, LLC 
GEORGE WEISS & COMPANY LLC 
GILBERT TRADING INC.
GOLDEN DOME TRADING, L.P. 
GOLDMAN, SACHS & CO. 
GOTHAM TRADING GROUP, LLC
GROUP ONE TRADING, L.P. 
GRUNTAL & CO., L.L.C. 
GS OPTIONS, INC. 

H & R BLOCK FINANCIAL ADVISORS, INC.
HARPO TRADING, LLC 
HEADWATERS CAPITAL, LLC
HEARD TRADING, LLC 
HOENIG & CO., INC.
HORAN INVESTMENTS CORP. 
HUSKY TRADING  WEISS, PECK & GREER, L.L.C.

INSTINET CLEARING SERVICES, INC. 
INTERACTIVE BROKERS LLC 
INVESTEC ERNST & COMPANY 
INVICTUS SECURITIES LLC 

J.A. K. SECURITIES, INC. 
J.P. MORGAN SECURITIES INC. 
JAG DERIVATIVES PARTNERSHIP