U.S. Markets closed

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.

Citigroup (C): More than 9,000 January 35 calls were purchased, mostly for $2.26, as investors look for upside in the share price. C rose 0.64 percent to $35.25.

Microsoft (MSFT): Almost 11,000 December 28 calls were purchased for $0.31 and $0.32 as investors look for the software giant to rebound. MSFT fell 0.37 percent to $26.74.

CVS Caremark (CVS): More than 4,800 November 47 calls were purchased for $0.01 and $0.02. Volume was below open interest, so investors were probably closing short positions before expiration tomorrow. CVS fell 1.38 percent to $44.78.

U.S. Steel (X): Some 11,000 December 20 puts were bought, mostly for $1.04, as investors look for downside in the share price. X fell 0.64 percent to $20.24.

More From optionMONSTER