Nasdaq

• Nasdaq Cancels Some Trades

  By Whitney Kisling, Bloomberg  |  December 14, 2012

  Errors led to price swings prior to the opening on Thursday.

• Nasdaq Bungles WhiteHorse IPO (WSJ)

  December 6, 2012

  Exchange erroneously delays opening trade.

• All U.S. Stock Trading Canceled

  By Nina Mehta and Nikolaj Gammeltoft, Bloomberg  |  October 29, 2012

  Shutdown ahead of storm may extend through Tuesday.