Underfolio

Every trading day › 2000

The stock market on October 23, 2000

October 23, 2000, a Monday. The S&P 500 fell 0.08% to close at 1395.78. Of 6,581 US stocks that traded, 2,892 rose and 2,712 fell.

The S&P 500-0.08%closed at 1395.78
How big a move#22,392of 24,799 trading days since 1928
$100 in the index since$552price only, to September 24, 2026
Stocks that rose2,892of 6,581; 2,712 fell
Biggest companyGeneral Electricby market value that day
Last day of trading for5stocks

Biggest rises among the 500 largest companies

Lexmark (LXK)+18.9%
Portal Software Inc (PRSF.)+17.5%
Vertex Pharmaceuticals Incorporated (VRTX)+16.5%

Biggest falls among the 500 largest companies

Sapient Corporation (SAPE)-13.0%
Quest Diagnostics (DGX)-11.8%
Cosine Communications Inc (COSN)-10.7%

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

‹ October 20, 2000 · Every October 23 · October 24, 2000 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.