Listed below are options with unusually high volume for the previous trading session compared with average daily volume. The relative level of activity is expressed in the daily volume ratio, which represents the current day's volume divided by the average daily volume for the past month.

Symbol	Call Volume	Average Call Volume	Daily Volume Ratio
SPX	559,160	269,634	2.07
TIF	322,947	16,712	19.32
TZA	112,096	14,209	7.89
AA	103,591	21,287	4.87
MSFT	99,841	43,879	2.28
XLV	95,346	5,487	17.38
DIA	94,242	38,487	2.45
NSM	69,397	5,068	13.69
FAZ	62,356	29,892	2.09
PVX	60,035	2,973	20.19
AMAT	38,080	6,883	5.53
HIG	36,480	11,003	3.32
BSX	29,040	8,536	3.40
CLX	26,554	1,680	15.81
WFR	25,684	5,380	4.77
EBAY	24,623	8,999	2.74
BBY	23,830	8,858	2.69
IVN	23,141	2,317	9.99
GPS	22,588	3,265	6.92
IYR	21,182	7,692	2.75
DTE	20,156	1,042	19.34
DBA	19,701	1,869	10.54
NKE	19,627	3,170	6.19
BTU	18,962	7,414	2.56
PLCM	17,267	1,470	11.75
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