Underfolio

Every trading day › 1987

The stock market on October 22, 1987

October 22, 1987, a Thursday. The S&P 500 fell 3.92% to close at 248.25. Of 6,379 US stocks that traded, 856 rose and 4,140 fell.

The S&P 500-3.92%closed at 248.25
How big a move#330of 24,799 trading days since 1928
$100 in the index since$3,103price only, to September 24, 2026
Stocks that rose856of 6,379; 4,140 fell
Biggest companyInternational Business Machines Corporationby market value that day
Last day of trading for3stocks

Biggest rises among the 500 largest companies

Sunoco (SUN)+8.9%
Norton Simon (NSI)+8.1%
Eli Lilly (LLY)+2.8%

Biggest falls among the 500 largest companies

Telerate Inc (TLR)-14.8%
Reynolds Metals (RLM)-14.1%
Safety-Kleen Corp-Old (SK)-13.6%

Stock moves count dividends; the index is price only. Market values after 2024 are estimates.

‹ October 21, 1987 · Every October 22 · October 23, 1987 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.