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Largest option trades in equities

David Russell (david.russell@optionmonster.com)

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.

YPF (YPF): Some 4,400 January 25 calls were bought in the Argentine oil driller, most of which priced for $0.50, as investors look for upside in the share price. YPF fell 1.26 percent to $20.34.

Marathon Petroleum (MPC): Some 15,000 April 62.50 puts were sold, mostly for $5.90, as investors look for the shares to hold their ground. MPC fell 1.79 percent to $63.78. (See related story )

OmniVision Technoloies (OVTI): Some 2,200 October 15 calls traded, mostly for $0.50 and $0.55, but volume was below open interest at the strike. OVTI fell 0.78 percent to $15.17.

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