Percival FX Forex Trading Robot

Percival FX is a robot developed by PimpMyEa and owes its profitability based on a specially developed trend following indicator . We review today some of its main features.

percival fx

Trading Style: Trend Following based on Fuzzy Indicators Concept


Timeframe: H1/H4



PriceClick to Buy PercivalFX: $149.99               

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This robot is based on the concept of Fuzzy Indicators. A “fuzzy indicator” is a set made up of multiple instances of the same indicator, each of them with different settings (usually the period).  Once the indicators signals are combined and reach consensus it is then decided if the robot will buy or sell.

This video highlights the most important features of Percival FX EA:

  • it makes new equity highs generally every 2/3 months
  • it opens multiple trades at the same time (and many times it also hedges positions), because each strategy (based on a fuzzy indicator) works independently from the others
  • it is a classic trend follower which hits big during trending periods – it is able to capture a portion of almost all the major market moves – however it is also able to capture small profits during ranging periods, thus reducing losses

Have a look at how the 6 year backtests for this Expert Advisor look like







And here is how the combined backtest look like


Fuzzy Indicators Explanation

Consider a “fuzzy pool” is a set of 11 fuzzy indicators. Each of those indicator can point the market is long or short. In our example bellow we are using the Moving Average indicator with 11  different periods from 10 to 110.  Each one expresses its opinion about being Long or Short in the market.Each of them gives a score (+1 for Long and -1 for Short) and we end up with a global score that can be any number in this set: {-11, -9, -7, -5, -3, -1, +1, +3, +5, +7, +9, +11}.  Eventually the fuzzy indicator will be Long when score >=7 and it will be short when score <= -7. This is the basic idea behind the robot PercivalFX

Here is the list of indicators that this robot works with: PSAR (Parabolic SAR), RSI (Relative Strength Index), WPR (William’s Percent Range), SMAEMASMMALWMA (different flavours of Moving Averages), STOCH (Stochastic’s Oscillator), CCI (Commodity Channel Index), MACD (Moving Average Convergence/Divergence), RVI (Relative Vigor Index).

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