Underfolio

Every trading day › 1981

The stock market on January 9, 1981

January 9, 1981, a Friday. The S&P 500 rose 0.32% to close at 133.48. Of 4,701 US stocks that traded, 1,963 rose and 1,045 fell.

The S&P 500+0.32%closed at 133.48
How big a move#16,189of 24,799 trading days since 1928
$100 in the index since$5,772price only, to September 24, 2026
Stocks that rose1,963of 4,701; 1,045 fell
Biggest companyInternational Business Machines Corporationby market value that day

Biggest rises among the 500 largest companies

Warner-Lambert (WLA)+13.3%
Dana (DAN)+12.2%
Scott Paper (SPP)+8.1%

Biggest falls among the 500 largest companies

Walmart (WMT)-6.4%
Cinergy (CIN)-5.8%
Koppers (KOP)-5.2%

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

‹ January 8, 1981 · Every January 9 · January 12, 1981 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.