Underfolio

Every trading day › 1991

The stock market on January 18, 1991

January 18, 1991, a Friday. The S&P 500 rose 1.30% to close at 332.23. Of 5,724 US stocks that traded, 1,712 rose and 1,719 fell.

The S&P 500+1.30%closed at 332.23
How big a move#4,022of 24,799 trading days since 1928
$100 in the index since$2,319price only, to September 24, 2026
Stocks that rose1,712of 5,724; 1,719 fell
Biggest companyInternational Business Machines Corporationby market value that day

Biggest rises among the 500 largest companies

CNA Financial Corporation (CNA)+12.5%
Williams (WMB)+9.0%
Santa Fe Pacific Corp. (SFX)+8.2%

Biggest falls among the 500 largest companies

Mellon Financial (MEL)-3.8%
State Street Corp. (STT)-3.7%
Duke Energy (DUK)-3.3%

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

‹ January 17, 1991 · Every January 18 · January 21, 1991 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.