Underfolio

Every trading day › 2026

The stock market on April 21, 2026

April 21, 2026, a Tuesday. The S&P 500 fell 0.63% to close at 7064.01. Of 3,433 US stocks that traded, 987 rose and 2,335 fell.

The S&P 500-0.63%closed at 7064.01
How big a move#10,217of 24,799 trading days since 1928
$100 in the index since$109price only, to September 24, 2026
Stocks that rose987of 3,433; 2,335 fell
Biggest companyNvidiaby market value that day

Biggest rises among the 500 largest companies

Avis Budget Group Inc (CAR)+17.3%
Astera Labs, Inc. (ALAB)+9.2%
Northern Trust (NTRS)+8.0%

Biggest falls among the 500 largest companies

Tractor Supply (TSCO)-11.7%
Echostar Corp (SATS)-8.3%
Coinbase Global (COIN)-7.4%

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

‹ April 20, 2026 · Every April 21 · April 22, 2026 ›

Ask the Lab what came after a day like this

History, not advice. How these numbers are made.