Underfolio

Every trading day › 2025

The stock market on October 14, 2025

October 14, 2025, a Tuesday. The S&P 500 fell 0.16% to close at 6644.31. Of 3,532 US stocks that traded, 2,487 rose and 960 fell.

The S&P 500-0.16%closed at 6644.31
How big a move#20,314of 24,799 trading days since 1928
$100 in the index since$116price only, to September 24, 2026
Stocks that rose2,487of 3,532; 960 fell
Biggest companyNvidiaby market value that day

Biggest rises among the 500 largest companies

Ubiquiti Inc (UI)+9.9%
Joby Aviation (JOBY)+8.0%
Wells Fargo (WFC)+7.1%

Biggest falls among the 500 largest companies

Astera Labs, Inc. (ALAB)-19.0%
Arista Networks (ANET)-5.9%
Ionq (IONQ)-5.5%

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

‹ October 13, 2025 · Every October 14 · October 15, 2025 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.