Elsewhere, short interest jumped 10.5% during the past month, pointing to escalating skepticism among short sellers.

FORBES: Sandy Rebuilding Could Turn Masco Bears Into Believers

This ratio of calls to puts is higher than 70% of all those taken during the past year, pointing to a growing optimism.

FORBES: Magazine Article

This ratio ranks above 56% of other such readings taken during the past year, pointing to a healthier-than-usual appetite for bullish bets over bearish.

FORBES: Three Struggling Semi Stocks Poised For Additional Losses