Listed below are options with unusually high intraday volume compared with average intraday volume (calculated as of 1 p.m. ET). The relative level of activity is expressed in the daily volume ratio, which represents the current intraday volume divided by the average intraday volume for the past month.

Symbol	Call Volume	Average Call Volume	Daily Volume Ratio
GENZ	10,307	4,754	2.17
FSLR	11,727	3,675	3.19
POT	8,582	3,469	2.47
FIS	15,785	3,413	4.62
ARNA	10,309	3,391	3.04
CVX	5,539	2,545	2.18
AMR	6,784	2,235	3.04
TLT	5,221	2,228	2.34
RRC	9,754	2,211	4.41
GNW	5,628	2,165	2.60
RMBS	5,698	2,146	2.66
WYNN	5,179	1,776	2.92
LPX	29,203	1,607	18.17
MET	4,025	1,266	3.18
TLAB	4,914	1,083	4.54
WFR	3,805	1,035	3.68
SWKS	2,549	1,002	2.54
BRCD	2,904	961	3.02
ACI	1,858	794	2.34
WLP	2,093	762	2.75
WMB	7,469	756	9.88
XME	1,224	599	2.04
MRO	1,169	552	2.12
CSTR	4,822	543	8.88
APKT	4,462	476	9.37
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