Anniversary of the 1987 stock market crash and investor questions about buying during a collapse

International coverage is marking the anniversary of the worst day in the history of the S&P 500 index, October 19, 1987, when it lost 20.5% in a single session. Some articles link this to investors' questions about buying during a collapse and not letting fears of a major decline derail their investments.

AI-written summary of 6 sources; every verified point is backed by a verbatim quote. How Iyan works

• The S&P 500 index lost 20.5% in a single session on October 19, 1987, and closed at 224.84.

  «On Oct. 19, 1987, it lost 20.5% in one session to end at 224.84.»

  The Motley Fool
• The article described that day as the worst day in the index's recorded history.

  «The S&P 500 ( ^GSPC -1.09%) had its worst day on record 39 years ago today.»

  The Motley Fool
• The article addressed investors' question of whether buying during a stock market collapse is worthwhile.

  «The S&P 500's Worst Day Was 39 Years Ago Today. Should You Buy When Stocks Crash?»

  The Motley Fool

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