Underfolio

Every trading day › 2026

The stock market on August 27, 2026

August 27, 2026, a Thursday. The S&P 500 rose 0.72% to close at 7730.99. Of 3,332 US stocks that traded, 1,427 rose and 1,786 fell.

The S&P 500+0.72%closed at 7730.99
How big a move#9,016of 24,799 trading days since 1928
$100 in the index since$99.65price only, to September 24, 2026
Stocks that rose1,427of 3,332; 1,786 fell
Biggest companyNvidiaby market value that day

Biggest rises among the 500 largest companies

Okta Inc (OKTA)+28.6%
Salesforce (CRM)+22.6%
Veeva Systems Inc (VEEV)+15.2%

Biggest falls among the 500 largest companies

Pandora Media Inc (P)-8.9%
Burlington Stores Inc (BURL)-7.6%
Caseys General Stores Inc (CASY)-5.4%

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

‹ August 26, 2026 · Every August 27 · August 28, 2026 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.