Largest option trades in equities

David Russell (

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.

National Bank of Greece (NBG): Investors bought more than 4,000 January 6 calls for $0.20 as investors continue to position for upside in the European lender. NBG rose 2.10 percent to $5.35.

Quanta Services (PWR): More than 4,000 November 30 calls were bought, most of which priced for $0.35, as investors look for upside in the engineering stock. PWR rose 1.28 percent to $28.44. (See related story )

SPDR Oil & Gas Exploration & Production Fund (XOP): Some 24,000 November 69 puts were bought for $0.93 and an equal number of November 63 puts was sold for $0.21. The vertical spread cost $0.72 to open, with potential profit of 733 percent on a drop to $63 by expiration. XOP rose 0.23 percent to $71.18.(See related story )

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