Underfolio

Every trading day › 1989

The stock market on May 18, 1989

May 18, 1989, a Thursday. The S&P 500 rose 0.15% to close at 317.97. Of 5,980 US stocks that traded, 1,869 rose and 1,694 fell.

The S&P 500+0.15%closed at 317.97
How big a move#20,374of 24,799 trading days since 1928
$100 in the index since$2,423price only, to September 24, 2026
Stocks that rose1,869of 5,980; 1,694 fell
Biggest companyInternational Business Machines Corporationby market value that day
Last day of trading for2stocks

Biggest rises among the 500 largest companies

CA Technologies (CA)+5.8%
Entergy Gulf States La LLC+4.9%
Columbia Energy Group+4.3%

Biggest falls among the 500 largest companies

Avon Products (AVP)-17.8%
W.R. Grace & Co. (GRA)-3.2%
Northrop Grumman (NOC)-2.8%

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

‹ May 17, 1989 · Every May 18 · May 19, 1989 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.