Underfolio

Every trading day › 1987

The stock market on August 25, 1987

August 25, 1987, a Tuesday. The S&P 500 rose 1.03% to close at 336.77. Of 6,328 US stocks that traded, 2,228 rose and 1,825 fell.

The S&P 500+1.03%closed at 336.77
How big a move#5,762of 24,799 trading days since 1928
$100 in the index since$2,288price only, to September 24, 2026
Stocks that rose2,228of 6,328; 1,825 fell
Biggest companyInternational Business Machines Corporationby market value that day
Last day of trading for3stocks

Biggest rises among the 500 largest companies

S&P Global (MHP)+9.7%
Newmont Gold Co (NGC)+7.2%
KeySpan (KSE)+7.0%

Biggest falls among the 500 largest companies

Sun Microsystems (SUNW)-4.0%
Berkshire Hathaway (BRK)-3.5%
Affiliated Pubns (AFP)-2.9%

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

‹ August 24, 1987 · Every August 25 · August 26, 1987 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.