Underfolio

Every trading day › 1987

The stock market on May 13, 1987

May 13, 1987, a Wednesday. The S&P 500 rose 0.23% to close at 293.98. Of 6,165 US stocks that traded, 1,894 rose and 2,001 fell.

The S&P 500+0.23%closed at 293.98
How big a move#18,187of 24,799 trading days since 1928
$100 in the index since$2,621price only, to September 24, 2026
Stocks that rose1,894of 6,165; 2,001 fell
Biggest companyInternational Business Machines Corporationby market value that day
Last day of trading for1stock

Biggest rises among the 500 largest companies

General Mills (GIS)+13.3%
CA Technologies (CA)+10.4%
TJX Companies, Inc. (The) (TJX)+10.1%

Biggest falls among the 500 largest companies

Centerior Energy (CX)-9.9%
Navistar International (NAV)-4.6%
Baxter International (BAX)-3.6%

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

‹ May 12, 1987 · Every May 13 · May 14, 1987 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.