A police car patrols in front of the New York Stock Exchange, Wednesday, Oct. 31, 2012, before it reopens for trading for the first time this week following a two-day shutdown due to superstorm Sandy. Stock futures are rising ahead of the opening bell. (AP Photo/Mark Lennihan)

Photo by: Mark Lennihan

A police car patrols in front of the New York Stock Exchange, Wednesday, Oct. 31, 2012, before it reopens for trading for the first time this week following a two-day shutdown due to superstorm Sandy. Stock futures are rising ahead of the opening bell. (AP Photo/Mark Lennihan)