Hewlett-Packard shares flat at $49.10 sees notable trade in Jan.2011 as the $40/$60 risk reversal trades 10,000x in what looks like sale of puts and purchase of calls for am 82c net credit. OI is sufficient to cover but appears to be new position. Shares of HPQ had traded down to $42 on Thursday but otherwise have not been below $40 since last July.