Session brief · Thursday, August 20, 2026 close
Stocks slipped. 2,985 fell, 1,692 rose — and energy bucked the tape.
10 of 11 sectors finished lower. Energy led at +0.58%; Consumer Discretionary lagged at -2.33%.
The biggest liquid gainer was ZeroStack (ZSTK), up 18.8% in consumer discretionary.
Among benchmarks, QQQ (Nasdaq-100) did best at -0.72% and IWM (Russell 2000) did worst at -1.34%.
Market breadth
4,791 common stocks · previous-session close▲ 1,692 advancing (35.3%)114 unchanged▼ 2,985 declining (62.3%)
Sectors, cap-weighted
| Sector | Change | Rising | Falling |
|---|---|---|---|
| Energy | +0.58% | 73 | 44 |
| Real Estate | −0.04% | 100 | 113 |
| Consumer Staples | −0.14% | 44 | 68 |
| Utilities | −0.38% | 41 | 70 |
| Industrials | −0.43% | 124 | 271 |
| Communication Services | −0.44% | 34 | 84 |
| Technology | −0.72% | 178 | 404 |
| Materials | −0.76% | 58 | 174 |
| Financials | −1.00% | 340 | 329 |
| Healthcare | −2.15% | 203 | 597 |
| Consumer Discretionary | −2.33% | 131 | 394 |
Top gainers
ZSTKZeroStackConsumer Discretionary$5.89+18.8%EMATEvolution Metals & TechnologiesIndustrials$3.33+16.8%MARAMARA HoldingsFinancials$11.15+15.5%MRVIMaravai LifeSciences HoldingsHealthcare$8.29+14.8%IOVAIovance BiotherapeuticsHealthcare$8.99+12.5%PRLDPrelude Therapeutics IncorporatedHealthcare$6.50+12.5%
Top losers
Most active
Common stocks · $2+ · 500K+ shares · $100M+ market cap · previous-session close. Changes compare the Aug 20, 2026 close with Aug 19, 2026; stocks with unexplained price jumps are excluded.