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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.

Best Buy (BBY): An investor sold 9.700 May 25 calls for $1.49 and bought 12,000 May 26 calls for $1.13, rolling a bullish position forward in time. It was increased in size as the investor continues to look for the retailer to keep climbing. BBY fell 0.66 percent to $25.28.

Vodafone (VOD): Some 8,500 January 32 calls were bought for $0.80 and the same number of January 35 calls was sold for $0.325 as an investor positions for the global telecom giant to keep rallying. VOD rose 0.43 percent to $28.26.

Liberty Interactive (:LINTA): Some 10,600 January 22 calls were bought for $1.40 to $1.50 as investors position for a rally. LINTA rose 1.20 percent to $21.05.

Yahoo (YHOO): Some 10,000 January 17 puts were bought, mostly for $0.42, as traders brace for a pullback in the Internet stock. YHOO fell 0.30 percent to $23.23.

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