As previously reported, the exchange initially planned to close its physical trading floor and open on electronic systems as Hurricane Sandy battered New York City today. That decision was reversed late last night. Minutes ago, the exchange said it would remain closed tomorrow, along with other U.S. markets:

In consultation with other exchanges and market participants, NYSE Euronext (NYX) will close its markets in coordination with all U.S. equities, bonds, options and derivatives markets on Tuesday, Oct. 30, 2012.  This follows the closure of U.S. markets on Monday, Oct. 28, 2012. We intend to re-open our U.S. markets on Wednesday, Oct. 31, 2012, conditions permitting; updates will be provided tomorrow.

While Nasdaq has yet to confirm it will remain closed tomorrow, The Observer has heard from one party dissuaded by the wind and rain. Padma Lakshmi and the cast of Top Chef: Seattle were slated to ring Nasdaq's opening bell in Times Square tomorrow. That appearance will be rescheduled, a spokeswoman for the show said.