Underfolio

Every trading day › 1987

The stock market on April 30, 1987

April 30, 1987, a Thursday. The S&P 500 rose 1.33% to close at 288.36. Of 6,146 US stocks that traded, 2,435 rose and 1,501 fell.

The S&P 500+1.33%closed at 288.36
How big a move#3,865of 24,799 trading days since 1928
$100 in the index since$2,672price only, to September 24, 2026
Stocks that rose2,435of 6,146; 1,501 fell
Biggest companyInternational Business Machines Corporationby market value that day
Last day of trading for4stocks

Biggest rises among the 500 largest companies

Price Co (PCLB)+10.4%
Ocean Drilling & Exploration (ODR)+7.1%
Lin Broadcasting (LINB)+6.9%

Biggest falls among the 500 largest companies

ConocoPhillips (P)-5.9%
RadioShack (TAN)-4.2%
Ual Corp. (UAL)-4.2%

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

‹ April 29, 1987 · Every April 30 · May 1, 1987 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.