Underfolio

Every trading day › 2025

The stock market on August 4, 2025

August 4, 2025, a Monday. The S&P 500 rose 1.47% to close at 6329.94. Of 3,532 US stocks that traded, 2,756 rose and 702 fell.

The S&P 500+1.47%closed at 6329.94
How big a move#3,183of 24,799 trading days since 1928
$100 in the index since$122price only, to September 24, 2026
Stocks that rose2,756of 3,532; 702 fell
Biggest companyNvidiaby market value that day

Biggest rises among the 500 largest companies

Idexx Laboratories (IDXX)+27.5%
Joby Aviation (JOBY)+18.8%
Affirm Holdings (AFRM)+12.6%

Biggest falls among the 500 largest companies

ON Semiconductor (ON)-15.6%
Dexcom (DXCM)-3.8%
Berkshire Hathaway Inc-2.9%

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

‹ August 1, 2025 · Every August 4 · August 5, 2025 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.