Nasdaq halts all trading due to computer malfunction

August 22, 2013|By Shan Li and Walter Hamilton

Nasdaq has halted trading on its securities due to a computer malfunction.… (Mark Lennihan / Associated…)

Nasdaq said Thursday it has halted all trading -- apparently the latest snafu to strike major exchanges and trading firms.

The halt affected scores of big-name stocks, including Apple Inc. and Google Inc., leaving small investors and others scrambling to find out what's happening in their stocks.

The cause of the glitch is unknown, although Nasdaq put an alert on its website related to something known as its securities information processor, which disseminates stock quotes.

The Nasdaq options markets released an update recommending that all firms route their orders elsewhere.

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All stocks listed on the New York Stock Exchange are trading normally, but trading in all Nasdaq-listed stocks and underlying options has been halted for about a half hour, Richard Adamonis, spokesman for NYSE Euronext, said around 10:15 a.m. Pacific time.

“We are monitoring the situation and are in close contact with the exchanges,” SEC spokesman John Nester told the Los Angeles Times.

This is the latest in a series of technical snafus that have struck stock markets and some big trading firms in recent years.

The most notorious was the so-called flash crash in 2010 in which the Dow Jones industrial average sank about 1,000 points in minutes, only to recover most of the loss minutes later.

The glitches have underscored what critics say is the fragility of the financial markets, despite the outward appearance of technological sophistication.

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Twitter: @ShanLi

Times staff writers Andrew Tangel in New York and Jim Puzzanghera in Washington, D. C., contributed to this report.

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