Underfolio

Every trading day › 1989

The stock market on April 21, 1989

April 21, 1989, a Friday. The S&P 500 rose 1.12% to close at 309.61. Of 5,993 US stocks that traded, 2,122 rose and 1,467 fell.

The S&P 500+1.12%closed at 309.61
How big a move#5,103of 24,799 trading days since 1928
$100 in the index since$2,488price only, to September 24, 2026
Stocks that rose2,122of 5,993; 1,467 fell
Biggest companyInternational Business Machines Corporationby market value that day
Last day of trading for1stock

Biggest rises among the 500 largest companies

Pe Corp-Pe Biosy (PEB)+9.7%
Oracle (ORCL)+5.5%
Merrill Lynch (MER)+5.4%

Biggest falls among the 500 largest companies

McDonnell Douglas (MD)-6.0%
IMC Global (IGL)-3.4%
Maytag (MYG)-3.2%

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

‹ April 20, 1989 · Every April 21 · April 24, 1989 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.