Underfolio

Every trading day › 1985

The stock market on August 30, 1985

August 30, 1985, a Friday. The S&P 500 fell 0.16% to close at 188.63. Of 5,711 US stocks that traded, 1,802 rose and 1,469 fell.

The S&P 500-0.16%closed at 188.63
How big a move#20,236of 24,799 trading days since 1928
$100 in the index since$4,084price only, to September 24, 2026
Stocks that rose1,802of 5,711; 1,469 fell
Biggest companyInternational Business Machines Corporationby market value that day
Last day of trading for5stocks

Biggest rises among the 500 largest companies

Knight Ridder (KRI)+4.7%
Northwest Airlines (NWA)+3.7%
Dillard's (DDS)+3.6%

Biggest falls among the 500 largest companies

American Airlines Group (AMR)-3.3%
Advanced Micro Devices (AMD)-3.2%
Illinois Tool Works (ITW)-3.2%

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

‹ August 29, 1985 · Every August 30 · September 3, 1985 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.