Business

Computer glitch briefly halts some trading on NYSE floor

A computer glitch briefly halted trading on the floor of the New York Stock Exchange for more than 200 stocks.

The disruption Friday hit 242 stocks, including American Express Co., General Electric Co., Merck & Co. and Exxon Mobil Corp., but they continued to be traded electronically without disruption. About 3,100 stocks are traded at the NYSE.

The trading halt affected how the Dow Jones industrial average was calculated. Of the index's 30 stocks, 27 trade at the Big Board. Eight of the stocks were halted on the floor.

Dow Jones spokeswoman Naomi Kim said the index was calculated using share prices that weren't being updated. She said a review of trades found "no major difference" to the index's published value and how it would have been calculated had the stock prices been updated continuously.

She said the Dow's present value was accurate once floor trading was restored.

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