Underfolio

Every trading day › 1989

The stock market on September 13, 1989

September 13, 1989, a Wednesday. The S&P 500 fell 0.93% to close at 345.46. Of 5,895 US stocks that traded, 1,588 rose and 2,028 fell.

The S&P 500-0.93%closed at 345.46
How big a move#6,681of 24,799 trading days since 1928
$100 in the index since$2,230price only, to September 24, 2026
Stocks that rose1,588of 5,895; 2,028 fell
Biggest companyInternational Business Machines Corporationby market value that day

Biggest rises among the 500 largest companies

Oracle (ORCL)+3.9%
Genentech Inc (DNA)+3.5%
MCI Communications (MCIC.)+3.3%

Biggest falls among the 500 largest companies

Harcourt Brace Jovanovich (HBJ)-5.9%
Merrill Lynch (MER)-4.0%
Security Pacific Corp-3.4%

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

‹ September 12, 1989 · Every September 13 · September 14, 1989 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.