Underfolio

Every trading day › 2026

The stock market on January 12, 2026

January 12, 2026, a Monday. The S&P 500 rose 0.16% to close at 6977.27. Of 3,508 US stocks that traded, 1,749 rose and 1,661 fell.

The S&P 500+0.16%closed at 6977.27
How big a move#20,271of 24,799 trading days since 1928
$100 in the index since$110price only, to September 24, 2026
Stocks that rose1,749of 3,508; 1,661 fell
Biggest companyNvidiaby market value that day

Biggest rises among the 500 largest companies

M/Acom Technology Solutions (MTSI)+13.0%
Hecla Mining Co (HL)+8.9%
Nextpower Inc. (NXT)+8.7%

Biggest falls among the 500 largest companies

Summit Therapeutics PLC (SMMT)-13.4%
Synchrony Financial (SYF)-8.4%
Alnylam Pharmaceuticals Inc (ALNY)-6.9%

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

‹ January 9, 2026 · Every January 12 · January 13, 2026 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.