We Haven't Reached Declines Large Enough to Activate Circuit Breaker

Investment Analysis Clubs Macro Economic Trends and Risks
1
Circuit breaker level S&P 500 Index decline percentage Market impact
1 7% 15-minute trading halt*
2 13% 15-minute trading halt*
3 20% Trading halted for all securities until the next trading day

I still remember Black Thursday 1987-a 22.6% decline.

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2

iirc, that was what led to the establishment of the “circuit breakers”.

Steve

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3

It wouldn’t surprise me to learn that the trading programs have been optimized to avoid triggering the circuit breakers.

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