The current circuit breaker rules went into effect in early 2013. There were dif... | Hacker News

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uptown on March 9, 2020 | parent | context | favorite | on: Trading halted as U.S. stocks plummet

The current circuit breaker rules went into effect in early 2013. There were different rules in-place prior to that date.

sdinsn on March 9, 2020 [–]

And under all rules, the last time it happened was 1997, so it's still signficant

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