Underfolio

Every trading day › 2026

The stock market on September 14, 2026

September 14, 2026, a Monday. The S&P 500 fell 0.48% to close at 7619.98. Of 3,326 US stocks that traded, 1,588 rose and 1,598 fell.

The S&P 500-0.48%closed at 7619.98
How big a move#12,747of 24,799 trading days since 1928
$100 in the index since$101price only, to September 24, 2026
Stocks that rose1,588of 3,326; 1,598 fell
Biggest companyNvidiaby market value that day

Biggest rises among the 500 largest companies

Zscaler Inc (ZS)+16.5%
Palo Alto Networks (PANW)+13.1%
Roblox (RBLX)+12.7%

Biggest falls among the 500 largest companies

Corning Inc. (GLW)-13.7%
Teradyne (TER)-13.3%
M/Acom Technology Solutions (MTSI)-12.8%

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

‹ September 11, 2026 · Every September 14 · September 15, 2026 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.