What are the circuit breaker mechanisms in the US stock market?

BiyaPay
Published on 2024-09-05 Updated on 2024-11-04

Market circuit breaker mechanism:

  • Primary market circuit breaker: If the market falls by 7%, trading will be suspended for 15 minutes (between 9:30-15:25), otherwise it will not be suspended.
  • Secondary market circuit breaker: If the market falls by 13%, trading will be suspended for 15 minutes (between 9:30-15:25), otherwise it will not be suspended.
  • Third level market circuit breaker: The market falls by 20%, and trading is stopped throughout the day until the opening of the next trading day.

Suspension trading mechanism for individual stocks:

  • Suspension of price fluctuation: If the price fluctuation of a stock touches the limit, trading will be suspended for 5 minutes during the period of 9:45-15:35 Eastern Time (inclusive); trading will not be suspended after 15:35. However, if the trading day is half a day, the time cutoff point will be adjusted to 12:35.

By understanding the above information, you can better participate in the US stock market, plan trading strategies reasonably, and control risks.

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