NASDAQ Trading Halted by Technical Issue
Technical trouble with a computer stock pricing system forced NASDAQ to shut down the high-tech heavy stock exchange shortly afternoon eastern time. Trading didn't resume until shortly before trading ended at 4 p.m.The financial market grinds to a standstill as a "glitch" hits the major exchange. New York's second largest financial exchange halted all trading on Thursday after a technical issue raised alarm bells about the integrity of the stock quote system. The NASDAQ Exchange halted trading at 12:20 p.m. EDT. A market summary note on Nasdaq.com posted at 12:35 p.m. EDT referred to the issue as an "apparent glitch." That glitch is tied to the NASDAQ Unlisted Trading Privileges (UTP) Securities Information Processor (SIP) quote dissemination system. "Due to an issue at the UTP SIP affecting quote dissemination, NASDAQ has implemented a regulatory halt for trading in all Tape C securities until further notice," a NASDAQ Market System Status stated.
NASDAQ's market system status first reported "momentary interruptions" at 11:45 a.m. EDT. At that time, the market said the interruptions lasted from approximately 10:57 to 11:03 a.m. EDT and were resolved with the system operating normally at 11:45 a.m. At 12:09 p.m., NASDAQ warned that it was experiencing quote submission issues with the UTP SIP.