Popular this month

The severe rout in U.S. stocks triggered trading curbs that the New York Stock Exchange put in place after the 1987 Black Monday crash.

A 15-minute trading halt trading halt took hold after the S&P 500 Index fell 7% to 2,764.21 as of 9:34 a.m. in New York, triggering the breaker for the first time since December 2008 at the depths of the financial crisis. Futures had plunged 4.89% overnight Sunday, triggering exchange rules that limit losses on those contracts and distorting price discovery for the cash market before the opening.