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CRASH OF '87: By The Numbers

The worst one-day crash in stock trading took place 25 years ago on October 19. Here's a look back at Black Monday, on its quarter-century anniversary.



SOURCES: Jeremy J. Siegel, Wharton School; Points and Figures; Securities Industry and Financial Markets Association, Wikimedia Commons
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CRASH OF '87: By The Numbers

Opening value of the Dow Jones Industrial Average.
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CRASH OF '87: By The Numbers

Closing value of the Dow.
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CRASH OF '87: By The Numbers

The decline, which still ranks as the largest percentage drop in one day.
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CRASH OF '87: By The Numbers

Loss of market value, in billions.
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CRASH OF '87: By The Numbers

The amount of shares traded on the New York Stock Exchange, in millions.
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CRASH OF '87: By The Numbers

The Dow on August 25, 1987.
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CRASH OF '87: By The Numbers

The drop from August 25 to October 19.
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CRASH OF '87: By The Numbers

Value of a S&P 500 stock index futures contract on August 25.
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CRASH OF '87: By The Numbers

Value of a S&P 500 stock index futures contract on October 20.
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CRASH OF '87: By The Numbers

The drop in value of that contract.
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CRASH OF '87: By The Numbers

The discount of a S&P futures contract at midday October 20, compared to the reported spot index, an unprecedented event. Trading halted for the only time in history of trading in stock index futures contracts.
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CRASH OF '87: By The Numbers

What the value of the Dow would have been at midday October 20, if the futures market had accurately reflected spot prices for stocks that Tuesday. It closed that day up slightly, at 1,841.
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CRASH OF '87: By The Numbers

Points lost in the Dow at the trough of the Flash Crash, May 6, 2010.
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CRASH OF '87: By The Numbers

The drop, at lowest point of Flash Crash.
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CRASH OF '87: By The Numbers

Average daily volume of trading this year on the NYSE, through August, in millions of shares.
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