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U.S. Stock Limit Rules Halted Nasdaq Trading as Futures Soared

  • Stock futures trading paused as ‘dynamic circuit breakers’ hit
  • CME changed trading limit rules last month from previous 5%
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Nasdaq 100 stock futures rose fast enough to trigger an exchange volatility halt that pauses especially rapid swings at 3.5%, as traders assessed election results.

Contracts on the Nasdaq 100 rose jumped 3.5% within an hour, setting off a trading pause for two minutes. If gains extend to 7% from a Chicago Mercantile Exchange reference price calculated at the end of the trading day Tuesday, moves will be entirely capped with hard upside limits. Nasdaq futures are up 3.9% in the complete overnight session.