Harmonic Patterns: Gartley, Butterfly, Bat & Crab Trading Guide
Technical Analysis · 14 min · Published 2026-03-29
Learn harmonic patterns for free. Covers Gartley, Butterfly, Bat, and Crab patterns with Fibonacci ratios, entry rules, and stop loss placement.
Harmonic patterns are geometric price structures based on Fibonacci ratios that identify potential reversal points. The four primary patterns are Gartley (moderate reversal), Butterfly (extended reversal), Bat (deep retracement), and Crab (extreme extension). Each pattern has specific Fibonacci ratios for the X-A, A-B, B-C, and C-D legs that must be met for the pattern to be valid.
Frequently Asked Questions
Are harmonic patterns reliable?
When properly identified with correct Fibonacci ratios, harmonic patterns have win rates of 60-70%. The key is strict adherence to ratio requirements — approximate patterns produce approximate results.
What timeframe works best for harmonic patterns?
Harmonics work on all timeframes, but 1-hour, 4-hour, and daily charts tend to produce the most reliable patterns due to larger sample sizes and less noise.
Can I learn harmonic trading for free?
Yes. Tradyom's free advanced technical analysis course covers all four primary harmonic patterns with real chart examples and ratio measurement techniques.