Nasdaq Error Shuts Options Market for Almost Entire Day
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Nasdaq OMX Group Inc. closed the sixth-largest U.S. options exchange more than five hours early because of a technical error, the latest malfunction to disrupt trading this week.
The Nasdaq Options Market, which handled 8.1 percent of American trading in September, was shut at 10:36 a.m. New York time and didn’t reopen because a “significant increase in order entries inhibited the system’s ability to accept orders and disseminate quotes” for some contracts, the company said. Trading continued on the 11 other U.S. venues, including two owned by New York-based Nasdaq.