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NYSE Says Certain Trades to Be Canceled After Glitch at Open

  • Exchange posts list of more than 250 stocks affected by error
  • It is also adjusting day’s high and low prices in public data
Bloomberg business news
NYSE, SEC Investigating Wild Moves at the Open
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The New York Stock Exchange said some trades will be declared “null and void” after a glitch caused hundreds of securities to commence trading on Tuesday without an opening auction price.

The exchange said transactions in a swath of stocks will be reviewed as “clearly erroneous” under NYSE rules. That applies to trades in certain securities that did not conduct an opening auction, that occurred after the 9:30 a.m. bell but before certain thresholds were set that normally limit haywire swings, and that were executed too far from the reference price.