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Pattern 13 of 18: all patterns
Classic reversals
  1. Double top and double bottom
  2. Triple top and triple bottom
  3. Head and shoulders
Consolidation breakouts
  1. Ascending triangle
  2. Descending triangle
  3. Symmetrical triangle
  4. Rising wedge and falling wedge
  5. Rectangle
  6. Bull flag and bear flag
  7. Bull pennant and bear pennant
Harmonic patterns
  1. AB=CD
  2. Gartley
  3. Bat
  4. Butterfly
  5. Crab
Smart money concepts
  1. Order block after a break of structure
  2. Liquidity sweep and fair value gap
Session patterns
  1. Opening range breakout
Harmonic patterns  ·  Pattern 13 of 18

Bat

Reversal at the PRZ

An XABCD shape with a shallow B (38.2% to 50% of XA) and a deep D near 88.6% of XA.

What it shows

The deep D gives a PRZ close to X, so the distance to the point where the pattern clearly fails is small.

How the scanner finds it
  • Four confirmed swings X, A, B and C. AB retraces 38.2% to 50% of XA and BC retraces 38.2% to 88.6% of AB.
  • The PRZ (potential reversal zone) is where two projections overlap: AD at 86% to 91% of XA, and CD at 161.8% to 261.8% of BC. No overlap, no pattern.
PRZXABCDTargetEntryStop134
An idealized drawing. The numbers are the alert stages; the shaded boxes are the textbook stop and target.

How the alerts work for this pattern

  1. 1
    Forming

    C is confirmed. The PRZ is drawn on the chart before price gets there.

  2. 3
    Close to signaling

    Price comes within a third of an ATR of the PRZ.

  3. 4
    Time to act

    Price touches the near edge of the PRZ.

  4. x
    Cancelled

    Price closes beyond C first, or takes more than twice the B to C time.

The textbook trade

Trigger
A touch of the near edge of the PRZ.
Stop
Beyond the far edge of the PRZ, plus half an ATR.
Target
61.8% of the AD leg back.

Things to watch

  • The PRZ sits close to X. A close beyond X invalidates the idea for most harmonic traders.
Where it comes from

Defined by Scott M. Carney in 2001 and described in Harmonic Trading, Volume One (2004).

On our charts

Real detections by the scanner on our own price data (2026-08-01 to 2026-10-19), with the alerts it sent. Times are New York time. Some worked and some did not.

US3015-minute chart2026-10-12Bullish BatHit the stop
51560.051644.751729.451814.251898.910-09 12:4510-09 15:4510-11 19:4510-11 22:4510-12 01:4510-12 04:45XABCT 51797.7E 51679.7S 51655.8145
The alerts it sent
  1. 1Forming2026-10-12 03:30 NYX, A, B and C are in; D should end in 51668.6 to 51679.7
  2. 4Time to act2026-10-12 05:00 NYtouched 51679.7: entry 51679.7, stop 51655.8, target 51797.7
  3. 5Result2026-10-12 05:45 NYstop (-1.00R)
BTCUSD15-minute chart2026-10-08Bullish BatHit the stop
81603.782101.782599.683097.583595.510-07 21:1510-07 23:3010-08 01:4510-08 04:0010-08 06:1510-08 08:3010-08 10:45XABCT 82935.0E 82372.6S 82222.2145
The alerts it sent
  1. 1Forming2026-10-08 06:30 NYX, A, B and C are in; D should end in 82319.7 to 82372.6
  2. 4Time to act2026-10-08 07:15 NYtouched 82372.6: entry 82372.6, stop 82222.2, target 82935.0
  3. 5Result2026-10-08 09:00 NYstop (-1.00R)

Education, not advice. A pattern describes what many traders watch for; it does not predict what price will do. The textbook stop and target are reference levels, not instructions. Trading involves risk.

Put it to work

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Trading involves risk. This page is education, not advice; examples come from past data.