Underfolio

Every trading day › 1997

The stock market on September 30, 1997

September 30, 1997, a Tuesday. The S&P 500 fell 0.64% to close at 947.28. Of 7,454 US stocks that traded, 3,376 rose and 2,890 fell.

The S&P 500-0.64%closed at 947.28
How big a move#10,203of 24,799 trading days since 1928
$100 in the index since$813price only, to September 24, 2026
Stocks that rose3,376of 7,454; 2,890 fell
Biggest companyGeneral Electricby market value that day
Last day of trading for10stocks

Biggest rises among the 500 largest companies

ITT Corporation (ITT)+8.4%
IKON Office Solutions (IKN)+7.1%
Ciena Corporation (CIEN)+6.5%

Biggest falls among the 500 largest companies

Quantum (QMCO)-9.7%
Ascend Communications (ASND)-8.2%
Synovus Financial Corp. (SNV)-7.8%

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

‹ September 29, 1997 · Every September 30 · October 1, 1997 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.