Bullish AB=CD

BullishReversalIntermediate

Two equal drops in a row. The second often ends where the measuring says.

Verdict: UseBitcoin 4H: 13 trades, won 69%, avg trade −0.1% vs random day +0.3% (too few trades to judge). Backtest

ABAB
Bullish AB=CD: textbook shape, step by step

Price drops from A to B. Measure that drop: it's the ruler for the whole pattern.

step 1/7

Trade rules

DirectionLong (buy)
EntryC retraces 38.2-88.6% of AB; CD equals AB in price (±5%) and takes 0.5-2x AB's time. Once price bounces 2% off D (2.5% on stocks), a candle CLOSES above the high of the D candle within 5 candles.
Cancelled ifPrice trades below D before that close. No pattern if price climbs back above C before D, or the second drop runs more than 5% longer than AB.
Target61.8% of A to D, projected from the breakout
3 common mistakes
  • Buying the moment CD equals AB, before price shows any turn.
  • Eyeballing the legs: a CD 20% longer than AB is not an AB=CD.
  • Ignoring time: a fast AB and a slow, grinding CD aren't the same move.

Backtest

same rules every time · equal size · no fees · method
MarketTradesWonAvg tradeRandom day
Bitcoin · 4H · 2017-2026 · too few trades to judge1369%−0.05%+0.31%
US large caps (50) · 1D · 2016-202613868%+0.94%+0.55%

Verdict: UseMade money and beat a random entry on US large caps. Bitcoin had too few signals to judge.

pattern +130%random +76%
US large caps (50) 1D: pattern +130% vs random day +76% over 138 trades

Real examples

Bitcoin · 4H

Breakout Nov 5, 2024, exit Nov 6, 2024 (target)+4.08%
ABCD = ABD candle highA73,620 · Oct 29, 2024B68,830 · Nov 1, 2024C71,633 · Nov 1, 2024D66,835 · Nov 4, 2024Entry
Bitcoin 4H, real candles from Oct 29, 2024

Amgen · 1D

Breakout Sep 19, 2025, exit Oct 1, 2025 (target)+3.75%
ABCD = ABD candle highA311.28 · Jul 24, 2025B281.65 · Aug 6, 2025C301.47 · Aug 20, 2025D271.61 · Sep 15, 2025Entry
Amgen 1D, real candles from Jul 24, 2025

Mastercard · 1D

trapBreakout Mar 13, 2020, exit Mar 16, 2020 (stop)−13.50%
ABCD = ABD candle highA347.25 · Feb 20, 2020B273.55 · Feb 28, 2020C314.59 · Mar 3, 2020D240.93 · Mar 12, 2020Entry
Mastercard 1D, real candles from Feb 20, 2020