Underfolio

Every trading day › 2020

The stock market on October 23, 2020

October 23, 2020, a Friday. The S&P 500 rose 0.34% to close at 3465.39. Of 3,780 US stocks that traded, 2,292 rose and 1,356 fell.

The S&P 500+0.34%closed at 3465.39
How big a move#15,514of 24,799 trading days since 1928
$100 in the index since$222price only, to September 24, 2026
Stocks that rose2,292of 3,780; 1,356 fell
Biggest companyAppleby market value that day

Biggest rises among the 500 largest companies

Boston Beer Company, Inc. (The) (SAM)+18.9%
Snap Inc. (SNAP)+10.8%
Iac Interactivecorp New (IAC)+4.6%

Biggest falls among the 500 largest companies

Intel (INTC)-10.6%
Cable One, Inc. (CABO)-3.8%
Unity Software Inc (U)-3.6%

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

‹ October 22, 2020 · Every October 23 · October 26, 2020 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.