Session brief · Monday, August 17, 2026 close
Stocks slipped. 3,146 fell, 1,549 rose — and energy bucked the tape.
8 of 11 sectors finished lower. Energy led at +1.15%; Consumer Staples lagged at -1.66%.
The biggest liquid gainer was Super League Enterprise (SLE), up 33.0% in technology.
Among benchmarks, QQQ (Nasdaq-100) did best at -0.16% and DIA (Dow 30) did worst at -0.49%.
Market breadth
4,800 common stocks · previous-session close▲ 1,549 advancing (32.3%)105 unchanged▼ 3,146 declining (65.5%)
Sectors, cap-weighted
| Sector | Change | Rising | Falling |
|---|---|---|---|
| Energy | +1.15% | 83 | 37 |
| Healthcare | +0.31% | 361 | 437 |
| Materials | +0.19% | 86 | 149 |
| Technology | −0.17% | 159 | 425 |
| Utilities | −0.55% | 30 | 81 |
| Industrials | −0.55% | 117 | 273 |
| Real Estate | −0.81% | 55 | 158 |
| Consumer Discretionary | −0.90% | 153 | 378 |
| Financials | −0.95% | 156 | 518 |
| Communication Services | −1.66% | 32 | 85 |
| Consumer Staples | −1.66% | 21 | 88 |
Top gainers
Top losers
Most active
Common stocks · $2+ · 500K+ shares · $100M+ market cap · previous-session close. Changes compare the Aug 17, 2026 close with Aug 14, 2026; stocks with unexplained price jumps are excluded.