Gartley, Bullish
5 min read
Core idea
The bullish Gartley is a five-turn harmonic pattern (X-A-B-C-D) shaped like a big M with the right peak (C) lower than the left (A) — essentially an ugly double top that ends with a Fibonacci-anchored low at D, where price is supposed to reverse upward. The defining final filter: DA/XA ≈ 0.786 (within 3%).
Of the five bullish Fibonacci-based patterns Bulkowski studies, the bullish Gartley is the worst performer in bull markets by average rise after D. The breakeven failure rate is the worst in the bullish-harmonic family. The reversal rate at D, however, is 86-90% — high enough to make the pattern useful as an exit-timing signal for shorts or a proactive buy signal for swing traders who can take small moves.
Why the M-with-lower-C shape matters
The right peak being lower than the left signals that bulls couldn't reclaim the prior high — momentum is shifting from up to mixed. But the move from D to a new high is then constrained by overhead resistance at A. Most bullish Gartleys reach the price of B (closest target above D) — but reaching A (the peak of the pattern) happens less than half the time in bull markets and less than a third in bear markets. Set your expectations accordingly.
Why it matters
The bullish Gartley is the case study in why "reversal rate" alone doesn't make a tradeable pattern. 86-90% of Gartleys reverse at D — that sounds like a high-conviction long entry. But the typical post-D move is small enough that transaction costs, slippage, and the cost of being wrong on the 10-14% of patterns that bust eats the expected value. The pattern is best used as:
- Cover signal for short positions — high-quality "stop shorting here."
- Tactical entry inside a larger bullish thesis — buy at D, take partial at B, exit before A unless conditions improve.
- Educational example for understanding harmonic-pattern statistics — high reversal rate ≠ high tradability.
The topic also reminds readers of a recurring trap: a bullish pattern emerging from a long horizontal top is usually a bull trap, regardless of whether it's a double bottom, a cup-with-handle, or a Gartley. The pattern looks valid, but the structural context (distribution top) overrides it.
Key takeaways
Mental model
Practical application
Identification
-
Mark X (a significant minor low) and A (the next significant minor high).
-
Find B so AB retraces AX by ~0.618.
-
Find C so CB retraces AB in a Fibonacci range — typically wide.
-
Find D so CD extends CB (1.13+ commonly).
-
Final filter: AD/AX within 3% of 0.786. Tight check that distinguishes Gartley from other harmonics.
-
Confirm C < A. If C ≥ A, you don't have a Gartley — you have a different harmonic pattern.
Trading the reversal at D
-
Scan the historical chart and the broad-market context. Reject any Gartley emerging from a breakdown of a long horizontal top — that's a bull trap.
-
Wait for price to actually reach the computed D. 10-14% of patterns never complete.
-
Wait for a confirmed turn at D — 1-2 bars of upward close. Some Gartleys dip past D briefly before reversing.
-
Buy with a stop just below D (a small percentage for headroom).
-
Set primary target at B (the closest peak above D, typically C). Almost all reversed patterns reach B.
-
Set stretch target at A only if the broader trend supports it. Less than half of bull-market patterns reach A.
-
Exit any trade that stalls before B — that's a fading reversal; the next move is likely down.
Example
A regional energy stock prints these turns over five months: X at $9.50 (March low), A at $13.20 (June high — well-defined peak), B at $11.40 (July low — AB/AX = ($13.20-$11.40)/($13.20-$9.50) = 0.49, within Fibonacci tolerance of 0.5 ✓), C at $12.80 (August high — CB/AB = ($12.80-$11.40)/($13.20-$11.40) = 0.78, within Fib range ✓; also C < A ✓), D at $10.30 (October low — CD/CB = ($12.80-$10.30)/($12.80-$11.40) = 1.79, slightly outside 1.618 but close; AD/AX = ($13.20-$10.30)/($13.20-$9.50) = 0.78, within 3% of 0.786 ✓).
Valid bullish Gartley.
Context check: the stock's broader structure shows a clear uptrend from $7 (year ago) to current; no long horizontal top above. No bull trap.
Day 1 after D: price closes at $10.55. Day 2: price closes at $10.80 — confirmed turn upward.
You buy 200 shares at next open ($10.90), stop at $10.10 (~2% below D).
Primary target: B at $11.40 (wait — B is below D in this example; let me recompute). Actually, in the bullish Gartley, B sits between A and D (price-wise above D). With B at $11.40 and D at $10.30, B is indeed the closest target above D. ✓
Target: $11.40. Hit on day 9 — partial sale of 100 shares at $11.35 for $0.45/share = $45 profit. Modest.
Stretch target: A at $13.20. Price reaches $12.30 on day 21, stalls, retreats. You exit the remaining 100 shares at $12.10 (trailing stop at $11.50) — $1.20/share = $120 profit. Total: $165 on a $2180 cost basis (~7.5% in 3 weeks).
That's the Gartley's typical trade profile: a high-reliability turn, a small move, modest profits. Useful as part of a broader strategy; not a foundation on its own.
Related lessons
Related concepts
- Harmonic Patternslinked concept
- Fibonacci Retracementslinked concept
- Chart Patternlinked concept
- Reversal Patternslinked concept
- Failure Ratelinked concept