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Largest option buying in equities so far

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.

Vodafone (VOD): An investor bought 16,000 July 27 calls for $1.05 and sold a matching number of July 24 puts for about $0.58. The trade resulted in a net cost of $0.47 and is similar to owning shares in the telecom giant. VOD rose 2.38 percent to $26.72.

iStar Financial (SFI): An investor purchased 10,000 January 12 calls, looking for the real-estate investment trust to keep climbing over the next year. SFI rose 3.99 percent to $9.07.

Nokia (NOK): More than 15,000 weekly 4.50 calls expiring tomorrow were bought. Volume was below open interest, so traders may have been closing previous short positions. NOK fell 4.72 percent to $4.42.

Texas Instruments (TXN): Almost 11,000 February 33 puts were purchased, mostly for $0.45 to $0.52, but volume was below open interest at the strike. TXN fell 1.09 percent to $33.44.

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