Symbol Name Puts Calls RealTime P/C Avg P/C
PMTC Parametric Technology Corporation 3,700 20 185.00 0.12
CAVM Cavium Networks Inc 3,073 43 71.47 0.72
NITE Knight Trading Group Inc 2,994 60 49.90 0.63
BIIB Biogen Idec Inc. 5,166 418 12.36 1.14
STD Santander Finance Preferred SA Unipersonal 5,147 466 11.05 1.31
AOL AOL Inc 3,043 299 10.18 0.29
ADM Archer Daniels Midland Company 9,813 990 9.91 0.72
USG USG Corp 2,744 284 9.66 0.49
ADI Analog Devices 3,495 456 7.66 1.63
CTXS Citrix Systems Inc 2,880 398 7.24 0.61

*Scanning all single-stocks subject to 2500 contracts minimum call or put volume