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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.

Carnival (CCL): An investor sold 17,186 January 36.50 calls for $3 against previous open interest and bought 34,372 January 41.50 calls for the ask price of $1.35. He or she apparently rolled a long position to the higher strike, took money off the table, and increased its size. CCL fell 1.35 percent to $36.53. (See related story )

Zeltiq Aethetics (ZLTQ): A block of 3,000 November 17.50 calls was sold for $3.20 as a trader looked to exit a long position in the medical-device maker. ZLTQ rose 5.42 percent to $17.90.

iShares U.S. Real Estate fund (IYR): More than 10,000 weekly 64 puts expiring next Friday, April 25, were sold for $0.07 to $0.10 as investors look for the sector to hold its ground. IYR rose 0.64 percent to $67.95.

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