The bell will ring again. The New York Stock Exchange is expected to reopen Wednesday, after superstorm Sandy shut down New York City and forced the trading floor to close Monday and Tuesday. The closure is the first time since 1988 that the NYSE was closed for two consecutive days due to weather. In the event that the floor is unable to open Wednesday, major operators are developing a backup plan for trades to take place on NYSE Arca, an all-electronic exchange.