Underfolio

Every trading day › 2021

The stock market on January 4, 2021

January 4, 2021, a Monday. The S&P 500 fell 1.48% to close at 3700.65. Of 3,878 US stocks that traded, 1,329 rose and 2,486 fell.

The S&P 500-1.48%closed at 3700.65
How big a move#3,177of 24,799 trading days since 1928
$100 in the index since$208price only, to September 24, 2026
Stocks that rose1,329of 3,878; 2,486 fell
Biggest companyAppleby market value that day

Biggest rises among the 500 largest companies

Moderna, Inc. (MRNA)+7.0%
Zoom Video Communications, Inc. (ZM)+6.7%
Opendoor Tech (OPEN)+5.6%

Biggest falls among the 500 largest companies

Quantumscape (QS)-40.8%
Teledyne (TDY)-7.5%
Datadog, Inc. (DDOG)-7.3%

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

‹ December 31, 2020 · Every January 4 · January 5, 2021 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.