Underfolio

Every trading day › 1997

The stock market on September 12, 1997

September 12, 1997, a Friday. The S&P 500 rose 1.24% to close at 923.91. Of 7,447 US stocks that traded, 3,880 rose and 2,256 fell.

The S&P 500+1.24%closed at 923.91
How big a move#4,323of 24,799 trading days since 1928
$100 in the index since$834price only, to September 24, 2026
Stocks that rose3,880of 7,447; 2,256 fell
Biggest companyGeneral Electricby market value that day

Biggest rises among the 500 largest companies

HealthSouth (HRC)+7.7%
Qwest Communications (Q)+7.6%
Xilinx (XLNX)+6.4%

Biggest falls among the 500 largest companies

ManpowerGroup (MAN)-9.2%
Ascend Communications (ASND)-6.8%
iHeartMedia, Inc. (IHRT)-5.7%

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

‹ September 11, 1997 · Every September 12 · September 15, 1997 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.