Underfolio

Every trading day › 1987

The stock market on September 3, 1987

September 3, 1987, a Thursday. The S&P 500 fell 0.46% to close at 320.21. Of 6,347 US stocks that traded, 1,739 rose and 2,238 fell.

The S&P 500-0.46%closed at 320.21
How big a move#13,242of 24,799 trading days since 1928
$100 in the index since$2,406price only, to September 24, 2026
Stocks that rose1,739of 6,347; 2,238 fell
Biggest companyInternational Business Machines Corporationby market value that day
Last day of trading for4stocks

Biggest rises among the 500 largest companies

Delhaize America Inc+5.1%
H&R Block (HRB)+4.0%
Usg Corp. (USG)+3.9%

Biggest falls among the 500 largest companies

Sonoco Products (SON)-7.0%
Cray Research (CYR)-6.5%
L Brands (LTD)-5.8%

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

‹ September 2, 1987 · Every September 3 · September 4, 1987 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.