Underfolio

Every trading day › 1988

The stock market on January 21, 1988

January 21, 1988, a Thursday. The S&P 500 rose 0.21% to close at 243.14. Of 6,301 US stocks that traded, 1,872 rose and 1,942 fell.

The S&P 500+0.21%closed at 243.14
How big a move#18,757of 24,799 trading days since 1928
$100 in the index since$3,169price only, to September 24, 2026
Stocks that rose1,872of 6,301; 1,942 fell
Biggest companyInternational Business Machines Corporationby market value that day

Biggest rises among the 500 largest companies

Baxter International (BAX)+8.5%
BankAmerica Corp.+7.7%
Rhone-Poulenc Rorer (RPR)+6.7%

Biggest falls among the 500 largest companies

FMC Corporation (FMC)-6.7%
Dun & Bradstreet Holdngs Inc (DNB)-5.5%
Albertsons (ABS)-4.9%

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

‹ January 20, 1988 · Every January 21 · January 22, 1988 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.