Three breadth conditions with a measured historical tendency, as of 2026-08-20: S&P 500 washouts in 200-day-moving-average breadth, Hindenburg Omen episodes measured on the global universe, and S&P 500 90% volume days. Consecutive fires within 5 days are collapsed into one episode. In our 2016–2026 backtest, the S&P averaged +8.2% in the quarter after a washout (baseline +3.5%) and -1.9% in the month after a global Hindenburg episode (baseline +1.2%). Historical tendencies, not predictions. Updated daily after the US close.
| Marker | Scope | Last episode | Episodes, last 12 months |
|---|---|---|---|
| Breadth washout (<20% above 200-DMA) | S&P 500 | 2025-04-07 | 0 |
| Hindenburg Omen episode | Global (~20,000 issues) | 2026-06-01 | 3 |
| 90% down-volume day | S&P 500 | 2025-12-31 | 2 |
| 90% up-volume day | S&P 500 | 2025-05-27 | 0 |
The interactive monitor at https://chartlas.com/regime adds the episode chart, McClellan and Zweig context indicators, and full methodology — free, no account needed. Related: global market breadth and the signal reference.
Chartlas is a data-analytics tool and does not provide investment advice. Data sourced from Yahoo Finance, provided as-is. Past performance does not guarantee future results.