Underfolio

Every trading day › 1981

The stock market on January 15, 1981

January 15, 1981, a Thursday. The S&P 500 rose 0.56% to close at 134.22. Of 4,704 US stocks that traded, 1,614 rose and 1,266 fell.

The S&P 500+0.56%closed at 134.22
How big a move#11,381of 24,799 trading days since 1928
$100 in the index since$5,740price only, to September 24, 2026
Stocks that rose1,614of 4,704; 1,266 fell
Biggest companyInternational Business Machines Corporationby market value that day
Last day of trading for2stocks

Biggest rises among the 500 largest companies

Sedco (SED)+13.2%
Petro-Lewis Corp+8.0%
Unocal Corporation (UCL)+7.7%

Biggest falls among the 500 largest companies

Ethyl (NEU)-6.0%
Revlon Inc -old-4.7%
Ncr Corp. (NCR)-4.4%

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

‹ January 14, 1981 · Every January 15 · January 16, 1981 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.