Underfolio

Every trading day › 2025

The stock market on December 9, 2025

December 9, 2025, a Tuesday. The S&P 500 fell 0.09% to close at 6840.51. Of 3,531 US stocks that traded, 2,061 rose and 1,366 fell.

The S&P 500-0.09%closed at 6840.51
How big a move#22,199of 24,799 trading days since 1928
$100 in the index since$113price only, to September 24, 2026
Stocks that rose2,061of 3,531; 1,366 fell
Biggest companyNvidiaby market value that day

Biggest rises among the 500 largest companies

Ares Management Corp (ARES)+7.3%
Echostar Corp (SATS)+6.0%
Newmont (NEM)+5.7%

Biggest falls among the 500 largest companies

Summit Therapeutics PLC (SMMT)-8.6%
Ferguson Enterprises Inc. /DE/ (FERG)-8.1%
AutoZone (AZO)-7.2%

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

‹ December 8, 2025 · Every December 9 · December 10, 2025 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.