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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.

Urban Outfitters (URBN): More than 5,000 September 43 calls have been purchased, mostly for $1, as investors look for the retailer to push higher. URBN rose 1.94 percent to $42.77.

Facebook (FB): Volume surged in the 8,700 October 42 calls and the October 46 calls as investors position for further upside in the social-media stock. FB rose 2.30 percent to $41.48.

Sina (SINA): A block of 3,000 September 70 calls was bought for $9.55 but volume was below open interest at the strike. SINA rose 2.28 percent to $79.94.

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