Primary Market Makers

• Adirondack Electronic Markets LLC (Bin 3)
• Bear, Stearns & Co. Inc. (Bin 5)
• Bear Wagner Specialists LLC (Bin 6)
• Deutsche Bank Securities Inc. (Bin 9)
• Knight Financial Products LLC (Bin 1)
• Morgan Stanley & Co. Incorporated (Bins 8, 10)
• SLK-Hull Derivatives LLC (Bin 2)
• Timber Hill LLC (Bins 4, 7)