Session brief · Monday, September 21, 2026 close

Stocks rallied. 2,704 rose, 2,288 fell — but energy lagged.

8 of 11 sectors finished higher. Technology led at +2.60%; Energy lagged at -2.74%.

The biggest liquid gainer was Greenland Energy (GLND), up 140.0% in energy.

Among benchmarks, QQQ (Nasdaq-100) did best at +2.77% and IWM (Russell 2000) did worst at +0.52%.

Written from 5,131 common stocksSource: Massive / Polygon daily aggregatesHow the brief is written
Market breadth
5,131 common stocks · previous-session close
▲ 2,704 advancing (52.7%)139 unchanged▼ 2,288 declining (44.6%)

Sectors, cap-weighted

SectorChangeRisingFalling
Technology+2.60%447174
Consumer Discretionary+1.27%326218
Communication Services+1.10%8337
Real Estate+0.91%14672
Healthcare+0.78%426407
Materials+0.53%139111
Industrials+0.31%238169
Financials+0.18%336430
Utilities−0.53%3482
Consumer Staples−0.70%4173
Energy−2.74%21105

Benchmarks

FundCloseChange
SPYS&P 500773.50+1.55%
QQQNasdaq-100741.47+2.77%
IWMRussell 2000285.58+0.52%
DIADow 30519.78+0.76%

Top gainers

Top losers

Most active

Common stocks · $2+ · 500K+ shares · $100M+ market cap · previous-session close. Changes compare the Sep 21, 2026 close with Sep 18, 2026; stocks with unexplained price jumps are excluded.

Stock Market on Monday, September 21, 2026: What Moved | Gainbot