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Stock Halts and Suspensions


What is a stock halt or suspension?

A stock halt or suspension occurs when regulators or exchanges temporarily stop trading a security due to extreme price volatility, exceptional market activity, or other specific circumstances.


Why do stock halts or suspensions happen?


  • Regulatory intervention: Regulators may halt trading to investigate unusual market activity or ensure that all investors have access to the same information.
  • Market stability: Exchanges may halt trading to prevent panic selling or to allow time for news to be disseminated to the public.

Where can I find more information about stock halts?

Information about stocks with trading halts, including the reasons for the halt, can be found on the NYSE and NASDAQ websites:



What are exchange circuit breakers?

Exchange circuit breakers are mechanisms used by stock exchanges to halt trading during severe market declines. They are designed to prevent panic selling and allow investors time to assess market conditions before resuming trading. These measures are based on declines in the S&P 500 index.


Level
Market Decline
Halt Trading Time
Level 1
7%
15 minutes
Level 2
13%
15 minutes
Level 3
20%
Closed for the remainder of the day.

A market decline that triggers a Level 1 or 2 circuit breaker at or after 3:25 pm EST will not halt trading.


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