Underfolio

Every trading day › 2001

The stock market on October 16, 2001

October 16, 2001, a Tuesday. The S&P 500 rose 0.69% to close at 1097.54. Of 5,841 US stocks that traded, 3,248 rose and 2,055 fell.

The S&P 500+0.69%closed at 1097.54
How big a move#9,365of 24,799 trading days since 1928
$100 in the index since$702price only, to September 24, 2026
Stocks that rose3,248of 5,841; 2,055 fell
Biggest companyGeneral Electricby market value that day

Biggest rises among the 500 largest companies

Ciena Corporation (CIEN)+12.0%
Juniper Networks (JNPR)+11.8%
ADC Telecommunications (ADCT)+11.2%

Biggest falls among the 500 largest companies

Express Scripts (ESRX)-9.9%
Caremark Rx (CMX)-8.3%
Kimberly-Clark (KMB)-7.5%

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

‹ October 15, 2001 · Every October 16 · October 17, 2001 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.