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Wall Street still dark, exchanges test systems

FILE - In this Monday, Oct. 29, 2012 file photo, the floor of the New York Stock Exchange is empty of traders, as New York's financial district braces for the onslaught of Hurricane Sandy. U.S. markets will remain closed Tuesday, Oct. 30, but the New York Stock Exchange said that despite reports that its historic trading floor suffered irreparable damage, no such damage has occurred and that contingency plans are being tested only as a safety measure. Futures trading will go on until 9:15 a.m. Eastern, but volume is light. (AP Photo/Richard Drew, File)

NEW YORK (AP) -- With lower Manhattan still largely without power Tuesday, U.S. stock exchanges tested contingency plans to ensure trading resumes as soon as possible this week after Hurricane Sandy smashed into the East Coast and shut down operations.

U.S. markets will be closed for a second day, but the New York Stock Exchange said that despite reports that its historic trading floor suffered irreparable damage, no such damage has occurred.

Sections of Manhattan were inundated with water and power was shut off to thousands of people and businesses Monday night.

Futures trading closed at 9:15 a.m. Eastern Tuesday, though volume was very light.

Dow Jones industrial futures rose 8 points to 13,062. The broader S&P futures added 3.5 points to 1,411.10. Nasdaq futures slipped 3.75 points to 2,655.25.