Underfolio

Every trading day › 2025

The stock market on October 3, 2025

October 3, 2025, a Friday. The S&P 500 rose 0.01% to close at 6715.79. Of 3,532 US stocks that traded, 2,263 rose and 1,173 fell.

The S&P 500+0.01%closed at 6715.79
How big a move#24,388of 24,799 trading days since 1928
$100 in the index since$115price only, to September 24, 2026
Stocks that rose2,263of 3,532; 1,173 fell
Biggest companyNvidiaby market value that day

Biggest rises among the 500 largest companies

Humana (HUM)+10.6%
Rocket Lab USA (RKLB)+7.0%
Ionq (IONQ)+5.3%

Biggest falls among the 500 largest companies

Roblox (RBLX)-8.1%
Palantir Technologies (PLTR)-7.5%
Las Vegas Sands (LVS)-7.4%

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

‹ October 2, 2025 · Every October 3 · October 6, 2025 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.