Butterfly Pattern — Reversal Beyond the X Extreme

The Gartley and the Bat share one dogma: point D can't break point X, because a correction is supposed to remain a correction. The Butterfly throws that dogma out. Here, wave CD is DESIGNED to go beyond the X extreme — the bullish version makes a fresh low below X, the bearish a fresh high above X. The pattern doesn't catch a correction inside a trend; it tries to catch the very end of the trend, at the spot where the last move looks like strength but is actually a shell.

The setup was introduced by Bryce Gilmore and popularized by Larry Pesavento and Scott Carney, who refined the ratios. The mechanism behind it is one you know from other market stories: a new extreme triggers stops and a chase for the breakout, and then — if demand or supply fails to confirm the move — the market turns back, leaving latecomers holding positions right at the top. A bullish D below the lows of a structure is functionally the same idea as a Wyckoff spring or an ICT liquidity sweep, only written down in Fibonacci proportions. You'll find the full vocabulary of the family and the shared trading rules in our harmonic patterns guide.

Pattern Structure

The Butterfly is an extension-type XABCD. The bullish variant draws a stretched-out letter "M" whose last leg drops BELOW point X; the bearish, an inverted "W" with D above X.

Two identifying markers. First: point B at 78.6% of XA — deeper than the Gartley (61.8%) and much deeper than the Bat (38.2–50%). A correction that deep is itself a sign the trend is weakening — and that's exactly why the Butterfly more often fires at the end of moves than in their middle. Second marker: D beyond X. If your "D" stopped short of X, that's not a Butterfly — at most a deep Gartley. And if the extension runs well past 161.8% of XA, you're looking at Crab territory instead.

The ±3-pp tolerance applies as it does across the whole family, but it's unforgiving on B: 78.6% is a constitutive condition. B at 61.8% with a "nice-looking" D past X is a hybrid that no canon describes — meaning a pattern you made up.

How to Measure Point D

A key change of tool compared to retracement-type patterns: D is measured as an EXTENSION of wave XA, not a retracement. The grid runs from X to A, and you read the levels outside the 0–100% range: 127.2% and 161.8%. The full PRZ zone comes from three measurements:

1. 127.2% extension of XA — the core of the zone; a more aggressive variant allows a run to 161.8%.
2. 161.8–224% extension of AB — a supporting measurement of wave CD relative to AB (some practitioners measure 1.618–2.618 from BC instead; pick one convention and stick with it).
3. Extended AB=CD — in the Butterfly, CD is generally longer than AB (127.2–161.8% of AB); when the projection agrees with the XA extension, the confluence is complete.

A practical note on zone width: the 127.2–161.8% XA range can be WIDE on the chart — the longer wave XA, the wider it gets. If the supporting measurements don't narrow it down to a reasonable area, the setup isn't tradeable, because you don't actually know where to wait. A good PRZ on a Butterfly is narrow relative to the risk of the trade; a wide zone isn't an opportunity, it's a lack of precision dressed up as a pattern.

How to Trade It

Entry. On a Butterfly, confirming the reaction in the D zone matters even more than on a Gartley or Bat, for a simple reason: you're buying a fresh break of a low (or selling a fresh break of a high). The exact same price picture accompanies the start of strong continuations — and then the "trap" is a real breakout, and you're the prey. Wait for a rejection candle back ABOVE the broken X level (bullish variant), a structure shift on a lower timeframe, or clear absorption of supply. Price returning above X after a poke through it is the single most honest trigger this pattern offers.

Stop loss. X is broken by definition, so you can't put a stop behind it. The natural invalidation boundary sits behind the outer ratio: with an entry around 127.2% XA, that's behind 161.8% XA with a buffer. Going deeper than that means it wasn't a reversal but a continuation (or, at best, a Crab still building — a DIFFERENT trade with a different entry). The stop is wider than the Bat's — that's the price you pay for trying to catch an extreme.

Targets. First: 38.2–61.8% retracement of wave CD. Second: the area around point B, then C. Third, on a full reversal: the area around A. Notice the asymmetry that makes this setup attractive despite the wider stop: if you really caught the end of the trend, the room to target is huge, because you're traveling back through the ENTIRE structure. Template: part of the position at the first target, breakeven, the rest at B/C with an eye on A. And an iron rule of contrarian trades: if price gets stuck after entry and can't reclaim the X level, don't wait for the stop — the setup that was supposed to be a trap for others is now closing in on you.

A numerical example, for the memory. A bullish Butterfly: an XA impulse from 100 to 110. B at 78.6% retracement, roughly 102.1. Bounce BC to around 106, then a long wave CD breaks X and runs to D = 127.2% extension of XA, roughly 97.3 — almost three units BELOW point X. Stop below 161.8% XA (roughly 93.8) with a buffer: risk of about 3.8 units. First target at 38.2–61.8% retracement of CD (roughly 100.6–102.7), second at B ≈ 102.1, third in the area of A = 110 — a full reversal exceeds 1:3 R:R. Notice how much in this setup depends on whether the reversal actually comes from the first zone: shifting the entry to 161.8% changes the whole arithmetic.

Common Mistakes

Trading a "Butterfly" before X breaks. D inside the XA range is a Gartley, not a Butterfly. Entering "in advance," before the market makes the extension, is a trade without a pattern — and without a defined invalidation.

Confusing a trap with a breakout. Not every new extreme reverses. A Butterfly against a fresh, strong trend with rising volume on wave CD is catching a moving train. Look for signs of exhaustion: divergence, fading volume, a sharp rejection.

Ignoring point B. B = 78.6% XA is a precondition. Setups with B at 50–61.8% and a "nice-looking" extension D are usually a Crab still building, or noise — entering at 127.2% would then be an entire zone too early.

A stop "right behind D." Price in extension zones moves violently — pokes past 127.2% before reversing are the norm. The boundary is 161.8% XA, not the most recent wick.

Believing in statistics that don't exist. Honestly, as with the rest of this series: no measurements at the Bulkowski standard exist for harmonics — no failure rate, no ranking. The "Encyclopedia of Chart Patterns" doesn't catalog this family. On top of that, the Butterfly is especially sensitive to the subjectivity of drawing: choosing a different X swing changes every extension, so two traders can see two different setups on the same chart. Treat the pattern as a precise record of the idea "false breakout of an extreme" — a sound idea, but one that requires your own measurement in a journal before you put real money on it.

FAQ

What is the Butterfly pattern? An extension-type XABCD structure (introduced by Bryce Gilmore, refined by Pesavento and Carney) in which B sits at 78.6% retracement of XA and D goes BEYOND point X — at 127.2% to 161.8% extension of XA. The bullish version catches a fresh low below X, the bearish a fresh high above X.

How does it differ from the Gartley and the Crab? From the Gartley, by where D lands: there D stays inside the XA range (78.6%), here it goes beyond X. From the Crab, by depth: the Crab has a shallower B (38.2–61.8% XA) and a farther extension D (161.8% XA). The Butterfly's marker is B exactly at 78.6% XA plus D just past X.

Where's the stop loss, since X is broken? Behind the outer ratio — with an entry around 127.2% XA, the boundary is 161.8% XA with a buffer. A deeper extension means either a continuation of the move or a Crab still forming, which is a different trade. Targets: CD retracements, then the areas around B, C and A.

FAQ

Rafał — Krypto Bez Ściemy

Trader and founder of Strefa Tradingu. He’s been breaking crypto down on YouTube for years — no hype, no signals, with a focus on market structure and risk management.

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