Underfolio

Every trading day › 2025

The stock market on April 21, 2025

April 21, 2025, a Monday. The S&P 500 fell 2.36% to close at 5158.20. Of 3,532 US stocks that traded, 746 rose and 2,710 fell.

The S&P 500-2.36%closed at 5158.20
How big a move#1,177of 24,799 trading days since 1928
$100 in the index since$149price only, to September 24, 2026
Stocks that rose746of 3,532; 2,710 fell
Biggest companyApple Inc.by market value that day

Biggest rises among the 500 largest companies

Dollar General (DG)+2.7%
Albertsons (ACI)+2.6%
Summit Therapeutics PLC (SMMT)+2.5%

Biggest falls among the 500 largest companies

Tenet Healthcare (THC)-9.4%
Blackstone Inc. (BX)-7.8%
Vistra (VST)-7.7%

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

‹ April 17, 2025 · Every April 21 · April 22, 2025 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.