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Nasdaq: 'Connectivity issue' caused failure of price dissemination system; 'cause of issue' addressed

The Nasdaq has issued a revised statement regarding today's three-hour trading shutdown, that includes a paragraph referring to a "connectivity issue."

This is the text:

Earlier this afternoon, NASDAQ OMX became aware that price quotes were not being disseminated by the Securities Industry Processor (SIP), which consolidates and disseminates all prices for the industry.

There was a connectivity issue between an exchange participant and the SIP, which led to a degradation in the ability of the SIP to disseminate consolidated quotes and trades. The cause of the issue has been identified and addressed.

Responding to the SIP issue, in order to protect the integrity of the markets, NASDAQ OMX issued a regulatory halt for all trading in NASDAQ-listed securities.

In the first 30 minutes, technical issues with the SIP were resolved. For the remaining period of time, NASDAQ OMX, other exchanges, regulators and market participants coordinated with each other to ensure an orderly re-opening of trading in NASDAQ-listed securities.

Trading resumed and the balance of the trading day finished in normal course.

NASDAQ OMX will work with other exchanges that are members of the SIP to investigate the issues of today, and we will support any necessary steps to enhance the platform.

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