Nearing the halfway mark in today's session, here are the individual equity names with the most call and put buying on optionMONSTER's ActionTracker data system.
Yahoo (YHOO): A block of 10,000 October 12 puts were bought for $0.24 as investors look for downside in the share price. YHOO rose 0.84 percent to $15.62.
Bank of America (BAC): More than 28,000 July 8 calls traded, mostly for $0.44 to $0.54, but volume was below open interest in the strike. BAC rose 4.12 percent to $8.08.
Aetna (AET): About 5,000 July 36 puts traded for $0.47 as investors sought protection before an expected Supreme ruling on the health-insurance industry. AET rose 0.32 percent to $41.24.
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