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Bullish and Bearish AB=CD Patterns: Identification and Trading Strategies

From TradingHabits, the trading encyclopedia · 5 min read · February 28, 2026
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A Formula for Trading the AB=CD Pattern\n\nA simple formula for calculating the profit target for an AB=CD pattern trade is:\n\n\nProfit Target = Entry Price + (Entry Price - Stop-Loss Price) * Risk-Reward Ratio\n\n\nFor example, if we enter a long position at $100 with a stop-loss at $95 and a risk-reward ratio of 2:1, our profit target would be:\n\n\nProfit Target = $100 + ($100 - $95) * 2 = $110\n\n

A Numerical Example: Apex Corp (APX)\n\nLet's consider the fictional stock Apex Corp (APX) to illustrate the trading of a bullish AB=CD pattern. The stock has been in a downtrend and has formed the following pivot points:\n

  • A: $50
  • B: $40
  • C: $45

We can see that the BC leg has retraced to the 0.500 level of the AB leg. This suggests that the CD leg will project to the 2.000 extension of the BC leg. We can calculate the completion point of the pattern as follows:

D = $45 - ($50 - $40) * 1.0 = $35

This gives us a potential reversal zone at $35. A trader could look to enter a long position at this level, with a stop-loss order placed below the low of the pattern.

PivotPriceFibonacci Retracement/Extension
A$50-
B$40-
C$450.500 of AB
D$351.000 of AB

Conclusion\n\nThe bullish and bearish AB=CD patterns are effective tools for identifying potential reversals in the market. By learning to recognize these patterns and applying sound trading strategies, traders can significantly improve their profitability. It is important to remember that no pattern is foolproof, and risk management should always be a top priority. By combining the AB=CD pattern with other forms of analysis, traders can increase their confidence in their trading decisions and achieve consistent results.\n\n### References\n\n[1] Gartley, H. M. (1935). Profits in the Stock Market. Lambert-Gann Publishing.\n[2] Carney, S. M. (2010). Harmonic Trading, Volume One: Profiting from the Natural Order of the Financial Markets. FT Press.