Underfolio

Every trading day › 1985

The stock market on February 21, 1985

February 21, 1985, a Thursday. The S&P 500 fell 0.55% to close at 180.19. Of 5,724 US stocks that traded, 1,320 rose and 2,069 fell.

The S&P 500-0.55%closed at 180.19
How big a move#11,663of 24,799 trading days since 1928
$100 in the index since$4,276price only, to September 24, 2026
Stocks that rose1,320of 5,724; 2,069 fell
Biggest companyInternational Business Machines Corporationby market value that day
Last day of trading for3stocks

Biggest rises among the 500 largest companies

Amerada Hess (AHC)+8.7%
Quantum Chemical (CUE)+3.6%
Safeway (SWY)+3.6%

Biggest falls among the 500 largest companies

KeySpan (KSE)-6.3%
Campbell Red Lake Mines (CRK)-6.1%
Louisiana-Pacific (LPX)-5.2%

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

‹ February 20, 1985 · Every February 21 · February 22, 1985 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.