Fractiz BETA
← Back to patterns Go to workspace

Pattern Detail

Deep Crab

A Crab variant with a deeper 0.886 B point, completing at the same 1.618 extension.

Completions

15

Completed Deep Crab structures on NQ over the sample period

Win Rate (decided)

60.0%

Share of decided trades (15 wins plus losses) that hit the target before the stop

Avg Return

+0.33%

Mean outcome across every completion, signed so positive favours the trade

Outcome Breakdown

Wins

Count
9
Avg return
+0.86%

Losses

Count
6
Avg return
-0.48%

Timeouts

Count
0
Resolve window
60 bars
Median return: +0.13% Bullish: 10 Bearish: 5 Strictness: balanced (swing 3, tolerance 5.0%)

Recent Deep Crab Completions (15)

Date Direction Entry Return Outcome
Jan 2, 2025 Bullish 21,064 +0.97% Win
Sep 2, 2021 Bullish 15,598.5 +0.22% Win
Oct 8, 2018 Bullish 7,326.75 +0.81% Win
Jun 22, 2018 Bullish 7,227.25 -0.55% Loss
Mar 27, 2018 Bearish 6,777.75 +2.11% Win
Jan 19, 2016 Bullish 4,148.75 +0.13% Win
Dec 22, 2015 Bearish 4,571.5 -0.29% Loss
Aug 5, 2014 Bullish 3,860.25 -0.35% Loss
May 28, 2014 Bearish 3,718.5 -0.24% Loss
Sep 20, 2011 Bearish 2,320 +1.55% Win
Jul 14, 2011 Bullish 2,332.25 +0.84% Win
May 13, 2011 Bullish 2,381.75 -0.42% Loss
Nov 25, 2010 Bullish 2,158.5 +0.10% Win
Aug 5, 2009 Bullish 1,604.75 +1.04% Win
Mar 12, 2008 Bearish 1,741.5 -1.00% Loss

Detection scan: NQ 15m · 2008-01-02 to 2026-04-24 · generated May 29, 2026

X A B C D
  • B = 0.886 of XA
  • C = 0.382-0.886 of AB
  • D = 2.0-3.618 of BC
  • D = 1.618 of XA
Idealized bullish Deep Crab. The bearish form is the mirror image.

What this pattern measures

The Deep Crab is a Crab variant with one change: the B point retraces a deep 0.886 of XA instead of the Crab’s shallower 0.382 to 0.618. The completion is the same, a 1.618 extension of XA reached through a long C-to-D projection. The deeper B gives the structure a different internal shape while keeping the Crab’s dramatic final overshoot.

This page measures what happened after each completed Deep Crab, scored by the trade the structure implies: fade the overshoot, target a 0.618 retracement of the move, stop just beyond the completion.

Definitions used on this page:

  • B retraces 0.886 of XA, C retraces 0.382 to 0.886 of AB, D projects 2.0 to 3.618 of BC, and D extends to 1.618 of XA.
  • Pivots are confirmed swing highs and lows at balanced strictness: 3 bars on each side, with a 5% tolerance on every ratio. A pattern is counted only on the bar its final pivot confirms.
  • The implied trade enters at the close of the confirming bar against the overshoot, targets a 0.618 retracement of the structure, and stops just beyond D. It is given 60 bars to resolve before timing out.
  • Outcomes are measured on CME:NQ at 15-minute and 5-minute bars.

Why it matters

The deep B point means the pullback inside the structure runs almost the full length of the first leg before the extension begins. The read is the same as the Crab, a fade of a far overshoot, but the deeper retracement is sometimes taken as a sign of a more decisive structure. It carries the same risk too: fading a violent move that does not stop. The deep B also sits close to the origin, so a shape that looked like a Deep Crab can resolve as a simple trend continuation instead.

How to read the numbers

  • Win rate is the share of decided trades, wins plus losses, that reached the target before the stop. Timeouts are excluded and reported on their own.
  • Avg return is the mean outcome across every completed pattern, signed so positive favours the trade direction.
  • Avg win and avg loss split the decided trades into their winning and losing sides.
  • Bullish and bearish counts show which direction the structure completed in.

What’s not here

  • No check for the exhaustion context a deep-overshoot fade usually needs.
  • No confluence with longer-term levels at the completion.
  • A single contract and two intraday timeframes. The Deep Crab is uncommon, so counts run low.

Keep going

Explore this pattern further with live data.

Go to workspace