Underfolio

Every trading day › 1988

The stock market on September 6, 1988

September 6, 1988, a Tuesday. The S&P 500 rose 0.42% to close at 265.59. Of 6,162 US stocks that traded, 1,863 rose and 1,728 fell.

The S&P 500+0.42%closed at 265.59
How big a move#13,948of 24,799 trading days since 1928
$100 in the index since$2,901price only, to September 24, 2026
Stocks that rose1,863of 6,162; 1,728 fell
Biggest companyInternational Business Machines Corporationby market value that day
Last day of trading for3stocks

Biggest rises among the 500 largest companies

Chemical Waste Management (CHW)+5.3%
Northwest Airlines (NWA)+4.7%
General Instrument (GIC)+4.6%

Biggest falls among the 500 largest companies

Genentech Inc (DNA)-9.5%
Pioneer Hi-Bred International, Inc. (PHB)-7.2%
Gap, Inc. (The) (GPS)-4.8%

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

‹ September 2, 1988 · Every September 6 · September 7, 1988 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.