NEW YORK (AP) - All U.S. stock markets are closed Monday because of Hurricane Sandy and are likely to remain closed Tuesday.
The last time the New York Stock Exchange had an unplanned closing was after the terrorist attacks of September 2001.
Duncan Niederauer, the chief executive of the exchange's parent company, NYSE Euronext, told CNBC on Monday that it was "hard to imagine" that the exchange would open Tuesday.
Much of the East Coast was at a standstill as the storm approached. New York City's mass transit system was closed down and areas around the Financial District in lower Manhattan were part of a mandatory evacuation zone. The storm surge from Sandy, which is due to make landfall Monday, is expected to push waters into portions of lower Manhattan.
The uncertainty generated by the storm comes at the start of a big week in the United States. This is the last full week before next Tuesday's presidential election and has been scheduled to culminate Friday with the release of monthly jobs data, which many analysts think could have an impact on the vote.