Stock exchange operator Nasdaq OMX
Nasdaq said it is cancelling trades in nine stocks in which trades occurred at prices that marked a swing of 10 percent or more from Wednesday's closing prices.
"We have no comment further than our ruling," said Robert Madden, a Nasdaq OMX spokesman.
Trades executed in the last minute of premarket trading on a third-party platform show wild swings in shares. Hewlett-Packard, for instance, closed on Wednesday at $14.53 a share. It saw more than 50 trades at $3.06 a piece, according to Thomson Reuters data.
Other stocks affected by the cancellations include AT&T
Nasdaq said trades in the following stocks will stand: Hess


