Underfolio

Every trading day › 2021

The stock market on October 19, 2021

October 19, 2021, a Tuesday. The S&P 500 rose 0.74% to close at 4519.63. Of 4,367 US stocks that traded, 2,620 rose and 1,553 fell.

The S&P 500+0.74%closed at 4519.63
How big a move#8,767of 24,799 trading days since 1928
$100 in the index since$170price only, to September 24, 2026
Stocks that rose2,620of 4,367; 1,553 fell
Biggest companyAppleby market value that day

Biggest rises among the 500 largest companies

Ginkgo Bioworks (DNA)+20.2%
Apollo Global Management, Inc. (APO)+7.1%
Penn Entertainment (PENN)+5.2%

Biggest falls among the 500 largest companies

Ulta Beauty (ULTA)-10.6%
AMC Entertainment Holdings, Inc. (AMC)-5.2%
Cloudflare, Inc. (NET)-4.4%

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

‹ October 18, 2021 · Every October 19 · October 20, 2021 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.