A double top is easy to recognize after the reversal and difficult to select prospectively. The test must define when the pattern exists, when it confirms, and which near-misses still count as observations.
Have a second reviewer classify a subset before outcomes are revealed, then disclose disagreements instead of quietly deleting them.
Draw the neckline rule
DESK 48Define peak separation, height tolerance, intervening trough, neckline break, confirmation close, and invalidation before scanning. Count near-misses and patterns that never confirm; otherwise the sample begins only after success is visible.
Pattern recognition becomes evidence only when another reader can select the same 150 examples.
Set timeframe, peak lookback, maximum separation, price tolerance, trough depth, neckline, confirmation close, entry, stop, target, and expiry. Use the same wick-or-close convention throughout.
Report selection count, confirmation rate, expectancy after costs, adverse excursion, failure modes, and results by regime. Compare with a simpler reversal or trend baseline to learn whether the double-top definition adds information.
Beginner exploration
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This page focuses on “How to Backtest Double-Top Patterns Reproducibly”.A reproducible 150-pattern double-top backtest defining peaks, tolerance, neckline, confirmation, invalidation, near-misses, costs, and a baseline.For “How to Backtest Double-Top Patterns Reproducibly”, a beginner should identify what the research note measures, assumes or teaches before acting on its conclusion.Treat this page's account of “How to Backtest Double-Top Patterns Reproducibly” as a learning reference rather than a prediction, signal or promise of future performance.
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