Symbol Name Puts Calls RealTime P/C Avg P/C
AINV Apollo Investment Corporation 2,999 19 157.84 0.19
OSIR Osiris Therapeutics Inc 6,396 213 30.03 0.69
GGB Gerdau SA 3,500 178 19.66 3.18
NRG NRG Energy Inc 2,802 157 17.85 0.51
PARD Poniard Pharmaceuticals Inc 6,721 587 11.45 1.74
WLP WellPoint Health Networks 5,060 475 10.65 0.63
YRCW YRC Worldwide Inc 4,916 488 10.07 0.93
WAG Walgreen Co 5,284 574 9.21 0.87
IMMU Immunomedics Inc 5,037 572 8.81 0.58
DKS Dicks Sporting Goods Inc 5,679 652 8.71 0.96

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