Competitive Market Makers

• Archelon LLC (Bins 1, 4 & 7)
• Banc of America Securities LLC (Bins 2-3, 5, 8-10)
• Bear Hunter Specialists LLC (Bins 2,6,7 & 9)
• Bear, Stearns & Co. Inc. (Bins 1, 3, 4, 8 & 10)
• Binary Traders, LP (Bin 3)
• Botta Capital Management L.L.C. (Bin 2-3)
• Cole Roesler Trading Group, L.P. (Bin 10)
• Deutsche Banc Alex. Brown Inc. (Bins 1-8,10)
• G-Bar Limited Partnership (Bin 2)
• Geneva, L.L.C. (Bin 5)
• GPZ Trading, L.L.C. (Bin 2)
• Hull Trading Company, L.L.C. (Bins 1, 3-10)
• KBC Adirondack Electronic Markets LLC (Bins 1, 2, 4-7, 9, 10)
• Knight Financial Products LLC (Bins 3-4, 6-10)
• LaRocque Trading Group, L.L.C. (Bin 5)
• LETCO/OMEGA, LLC (Bin 4)
• Midland Trading, L.P. (Bins 3,9)
• Morgan Stanley & Co. Incorporated (Bins 1-9)
• Nordic Options LLC (Bin 9)
• Option Funding Group, L.P. (Bins 1, 7)
• SG Cowen Securities Corporation (Bins 1, 6, 10)
• Tague Van der Moolen LLC (Bins 2, 9)
• Timber Hill LLC (Bins 1-3, 6-9)
• Wolverine Trading, L.P. (Bin 6)