The S&P 500 crashed 20.5% in a single day. On October 19, 1987, it closed at 225, from 283 at the previous close. A 20.5% move …
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The S&P 500 crashed 20.5% in a single day. On October 19, 1987, it closed at 225, from 283 at the previous close. A 20.5% move …
source