Underfolio

Every trading day › 1987

The stock market on September 25, 1987

September 25, 1987, a Friday. The S&P 500 rose 0.14% to close at 320.16. Of 6,382 US stocks that traded, 1,809 rose and 2,018 fell.

The S&P 500+0.14%closed at 320.16
How big a move#20,757of 24,799 trading days since 1928
$100 in the index since$2,406price only, to September 24, 2026
Stocks that rose1,809of 6,382; 2,018 fell
Biggest companyInternational Business Machines Corporationby market value that day
Last day of trading for1stock

Biggest rises among the 500 largest companies

Irving Bank Corp (V)+49.3%
PepsiAmericas (WH)+11.4%
Delhaize America Inc+10.4%

Biggest falls among the 500 largest companies

Intergraph Corp (INGR.)-7.0%
Chrysler Corp (C)-4.4%
Advanced Micro Devices (AMD)-3.9%

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

‹ September 24, 1987 · Every September 25 · September 28, 1987 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.