Nasdaq OMX PHLX Delays Opening for Options Floor Trading

Nasdaq OMX Group Inc. (NDAQ) said it delayed the opening for floor trading on the Nasdaq OMX PHLX because of an issue with the floor-based systems.

The alert that trading was suspended went out at 9:48 a.m. New York time, according to an e-mail from the company. Electronic trading is “functioning normally,” the New York- based company said.

Nasdaq OMX PHLX accounted for 19 percent of U.S. options trading, including indexes, last month, according to data compiled by Bloomberg. Rob Madden, a spokesman for Nasdaq, declined to comment beyond the company’s notice.

To contact the reporters on this story: Whitney Kisling in New York at; Nina Mehta in New York at

To contact the editor responsible for this story: Nick Baker at

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