Symmetrical triangle
Continuation shape211 completed examples in the record
What the shape is
Two converging boundaries with no flat side. It indicates that a move is coming, not which way, so no hit rate is published for it. It is by far the most common formation in this dataset: 211 of the 661 found.
What followed it
| Horizon | Examples | Textbook direction | Median change | Middle half |
|---|---|---|---|---|
| 5 bars | 211 | no directional claim | +0.19% | -2.12% … +2.60% |
| 10 bars | 211 | no directional claim | +0.63% | -2.77% … +4.26% |
| 20 bars | 211 | no directional claim | +3.88% | -2.27% … +11.25% |
| 60 bars | 210 | no directional claim | +7.66% | -2.94% … +18.05% |
This shape indicates that a move is coming, not which way. Scoring it on whether price moved at all would read as near-perfect accuracy, so no rate is published; read the spread of outcomes instead.
10 instruments, 1d / 4h, 2017-08-17 to 2026-07-25 — 182,341 bars and 661 completed formations.
engine v1.0.0 · Record generated 2026-07-25
- These figures describe past occurrences of the same shape. They are not a projection of this chart.
- 661 formations is not a large sample, and the instruments are correlated USDT pairs, so the effective sample is smaller still.
- Below 30 examples no rate is printed at all.
- Changes are close-to-close and exclude fees, funding and slippage.
- Medians and quartiles pooled across instruments are sample-weighted approximations, not exact pooled quantiles.
- A formation is timed from the bar its break became observable, and every change is measured strictly after that bar.
- Pooled across every instrument and both backtest timeframes.
The same shape, split by interval
Interval 1d
| Horizon | Examples | Textbook direction | Median change | Middle half |
|---|---|---|---|---|
| 5 bars | 30 | no directional claim | +3.98% | +0.52% … +8.23% |
| 10 bars | 30 | no directional claim | +5.43% | -1.03% … +10.50% |
| 20 bars | 30 | no directional claim | +24.21% | +8.67% … +51.40% |
| 60 bars | 30 | no directional claim | +57.32% | +19.02% … +92.20% |
Interval 4h
| Horizon | Examples | Textbook direction | Median change | Middle half |
|---|---|---|---|---|
| 5 bars | 181 | no directional claim | -0.44% | -2.56% … +1.67% |
| 10 bars | 181 | no directional claim | -0.16% | -3.06% … +3.23% |
| 20 bars | 181 | no directional claim | +0.51% | -4.09% … +4.60% |
| 60 bars | 180 | no directional claim | -0.61% | -6.60% … +5.70% |
The backtest covered the daily and 4-hour intervals only. Only one shape reaches the publication floor on the daily, against eight on the 4-hour — so every pooled rate above is in practice a 4-hour statistic. The console scans five intervals; the three not listed here have no historical record at all.
How it is detected
Formations are matched against swing pivots rather than raw bars, so a single spiky candle cannot create one. A pivot is committed only once price reverses by more than 2.5 times ATR(14), floored at 0.8% of price. A detection is reported only at confidence 0.72 or above — the library default, unmodified.