Underfolio

Every trading day › 1991

The stock market on August 1, 1991

August 1, 1991, a Thursday. The S&P 500 fell 0.18% to close at 387.12. Of 5,708 US stocks that traded, 1,598 rose and 1,945 fell.

The S&P 500-0.18%closed at 387.12
How big a move#19,651of 24,799 trading days since 1928
$100 in the index since$1,990price only, to September 24, 2026
Stocks that rose1,598of 5,708; 1,945 fell
Biggest companyExxon Mobilby market value that day
Last day of trading for2stocks

Biggest rises among the 500 largest companies

U S Healthcare Inc (USHC)+6.9%
Sun Microsystems (SUNW)+6.5%
Apple (AAPL)+6.2%

Biggest falls among the 500 largest companies

General Re (GRN)-4.9%
Burlington Resources (BR)-4.7%
Hormel Foods (HRL)-3.9%

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

‹ July 31, 1991 · Every August 1 · August 2, 1991 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.