UPDATE 12:49 EST: CNBC reports: Nasdaq indexes have resumed trading

Update 12:37 EST: According to the information released by Nasdaq OMX Group Inc (NASDAQ:NDAQ) the problem is being caused by its Global Index Data Service that it introduced in 2012. The fact that stocks are trading normally was reiterated by the company.

The options halted by today’s problem are apparently the SOX, OSX, NDX and HGX options. The company says that it’s software is not disseminating values for those options and it has had to halt trading as a result. Thanks to Zero Hedge for picking up on the options that have been halted by the exchange.

The Nasdaq has halted trading of some options according to a report from CNBC. According to the report the Nasdaq composite and the Nasdaq 100 were frozen just before lunchtime. The company that runs the Nasdaq exchange, Nasdaq OMX Group Inc (NASDAQ:NDAQ) says that it was looking into a problem associated with data feeds.


This is the second time in a matter of weeks that the Nasdaq has had problems with its data feeds. According to the CNBC report today’s glitch has not stopped the stocks on the Nasdaq trading normally, so there is some confusion about what the glitch has actually affected. The last time there was a glitch that halted trading the problems were not dealt with so easily.

Nasdaq halt: data feed glitch

Back on August 22 the Nasdaq halted trading because of a glitch in its own software. After the problem that caused the trading halt came to light Nasdaq OMX Group Inc (NASDAQ:NDAQ) promised to resolve the issue and put procedures in place to prevent the market being compromised by a halt again.

Back in August the data feed glitch halted the market for around three hours. There is no news on how long it will take to resolve today’s problems, and none on what the problem at the center of the issue is, beyond a data feed glitch.