Session brief · Thursday, August 13, 2026 close

Stocks rose. 2,697 rose, 1,974 fell — but materials lagged.

8 of 11 sectors finished higher. Communication Services led at +2.55%; Materials lagged at -1.12%.

The biggest liquid gainer was Accelerant (ARX), up 43.4% in financials.

Among benchmarks, QQQ (Nasdaq-100) did best at +1.16% and DIA (Dow 30) did worst at +0.14%.

Written from 4,802 common stocksSource: Massive / Polygon daily aggregatesHow the brief is written
Market breadth
4,802 common stocks · previous-session close
▲ 2,697 advancing (56.2%)131 unchanged▼ 1,974 declining (41.1%)

Sectors, cap-weighted

SectorChangeRisingFalling
Communication Services+2.55%8435
Real Estate+1.18%16939
Consumer Staples+1.05%7535
Technology+0.90%370213
Industrials+0.77%231161
Financials+0.32%481190
Consumer Discretionary+0.22%293230
Utilities+0.14%7634
Energy−0.07%4872
Healthcare−0.13%338462
Materials−1.12%90143

Benchmarks

FundCloseChange
SPYS&P 500777.88+0.70%
QQQNasdaq-100732.07+1.16%
IWMRussell 2000303.50+0.26%
DIADow 30537.91+0.14%

Top gainers

Top losers

Most active

Common stocks · $2+ · 500K+ shares · $100M+ market cap · previous-session close. Changes compare the Aug 13, 2026 close with Aug 12, 2026; stocks with unexplained price jumps are excluded.

Stock Market on Thursday, August 13, 2026: What Moved | Gainbot