Transparent historical data
What Happens to Ethereum After a New 30-Day High?
Ethereum has recorded 7 completed independent occurrences in this 7-day study. The median subsequent return was -1.36% and 28.6% of outcomes finished higher.
Source: CoinGecko. Available local data: 2025-09-10 through 2026-09-16. Compare across assets → · Backtest this rule →
Outcome summary
Distribution of 3-day outcomes
| Return range | Occurrences |
|---|---|
| -5.1% to -3.7% | 1 |
| -3.7% to -2.2% | 2 |
| -2.2% to -0.8% | 2 |
| -0.8% to +0.6% | 0 |
| +0.6% to +2.0% | 1 |
| +2.0% to +3.4% | 0 |
| +3.4% to +4.8% | 0 |
| +4.8% to +6.2% | 1 |
| +6.2% to +7.6% | 1 |
All forward horizons
Click a horizon to jump the summary above to it, or a column header to re-sort this table.
| Horizon | Sample | Median | Average | Positive | Best | Worst |
|---|---|---|---|---|---|---|
| 1 days | 8 | -0.64% | 0.55% | 50.0% | 7.40% | -2.00% |
| 3 days | 8 | -1.10% | 0.12% | 37.5% | 7.62% | -5.06% |
| 7 days | 7 | -1.36% | -0.97% | 28.6% | 11.31% | -11.67% |
| 14 days | 7 | -2.95% | -0.64% | 42.9% | 8.16% | -9.32% |
| 30 days | 6 | 5.10% | -1.49% | 66.7% | 20.63% | -41.52% |
| 90 days | 3 | -23.95% | -25.22% | 0.0% | -22.99% | -28.72% |
Historical occurrences
8 independent episodes. Recent events can have incomplete longer horizons.
Filters apply to the list below only — outcome statistics above use the complete historical sample.
| Date | Trigger | Price | 1d | 3d | 7d | 14d | 30d | 90d |
|---|---|---|---|---|---|---|---|---|
| 2026-09-13 | 0.41 | $2525.27 | -1.92% | -5.06% | — | — | — | — |
| 2026-08-20 | 15.30 | $2251.73 | +3.32% | +7.62% | +11.31% | +6.18% | — | — |
| 2026-07-22 | 0.62 | $1928.66 | +0.25% | -3.54% | -0.42% | -3.11% | +20.63% | — |
| 2026-07-13 | 0.39 | $1805.49 | -1.74% | +6.16% | +3.62% | +8.16% | +4.15% | — |
| 2026-07-07 | 0.20 | $1798.56 | -1.52% | -2.99% | -1.36% | +5.74% | +6.05% | — |
| 2026-04-14 | 1.30 | $2374.02 | -2.00% | -1.05% | -2.50% | -2.95% | -4.87% | -23.95% |
| 2026-03-16 | 2.56 | $2182.07 | +7.40% | +0.97% | -5.79% | -9.18% | +6.62% | -22.99% |
| 2026-01-14 | 1.17 | $3330.50 | +0.64% | -1.14% | -11.67% | -9.32% | -41.52% | -28.72% |
Best 7-day cases
- 2026-08-20: +11.31%
- 2026-07-13: +3.62%
- 2026-07-22: -0.42%
Worst 7-day cases
- 2026-01-14: -11.67%
- 2026-03-16: -5.79%
- 2026-04-14: -2.50%
How this study works
The daily reference price must exceed every earlier price in the prior 30 days; nearby highs are grouped.
Forward return = ((price on T + horizon / price on T) − 1) × 100. Missing exact UTC dates are marked incomplete and excluded from aggregates. Percentiles use inclusive linear interpolation.