Underfolio

Every trading day › 2026

The stock market on March 27, 2026

March 27, 2026, a Friday. The S&P 500 fell 1.67% to close at 6368.85. Of 3,455 US stocks that traded, 597 rose and 2,768 fell.

The S&P 500-1.67%closed at 6368.85
How big a move#2,453of 24,799 trading days since 1928
$100 in the index since$121price only, to September 24, 2026
Stocks that rose597of 3,455; 2,768 fell
Biggest companyNvidiaby market value that day

Biggest rises among the 500 largest companies

Entergy Corp (ETR)+6.8%
Halliburton (HAL)+4.2%
APA Corporation (APA)+3.7%

Biggest falls among the 500 largest companies

AST SpaceMobile, Inc. (ASTS)-10.5%
Corebridge Fincl (CRBG)-8.6%
Datadog Inc (DDOG)-7.9%

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

‹ March 26, 2026 · Every March 27 · March 30, 2026 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.