Underfolio

Every trading day › 1991

The stock market on September 5, 1991

September 5, 1991, a Thursday. The S&P 500 fell 0.21% to close at 389.14. Of 5,730 US stocks that traded, 1,662 rose and 1,905 fell.

The S&P 500-0.21%closed at 389.14
How big a move#18,679of 24,799 trading days since 1928
$100 in the index since$1,980price only, to September 24, 2026
Stocks that rose1,662of 5,730; 1,905 fell
Biggest companyExxon Mobilby market value that day

Biggest rises among the 500 largest companies

Centocor Inc (CNTO.)+12.3%
Chiron (CHIR)+6.0%
Giant Food (GFS.A)+3.9%

Biggest falls among the 500 largest companies

L Brands (LTD)-7.3%
Intl Specialty Products Inc (ISP)-7.1%
Sears Holdings (SHLDQ)-6.5%

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

‹ September 4, 1991 · Every September 5 · September 6, 1991 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.