EA-22516 · Trend Following

Exp_UltraFatl_Duplex

This EA implements a duplex (dual-direction) trend-following strategy based on the UltraFatl digital filter indicator, opening both long and short positions based on multi-layer digital signal processing. It uses a sophisticated cascade of adaptive filters to identify trend direction and generates entry signals when multiple filter layers align, with built-in position management and trailing mechanisms.

Open the interactive view (equity curve, symbol switch)

Key facts

RiskMedium
Rating★★★☆☆
TypeTrading EA
TimeframesM15, H1, H4, D1
IndicatorsUltraFatl Digital Filter, FATL, FTL, RFTL, SATL, RSTL
AuthorCopyright © 2018, Nikolay Kositsin

Backtest results (H1, about 1 year)

Not backtested yet — this EA could not be converted automatically.

Strategy analysis

The strategy core is based on the UltraFatl digital filter, a multi-layer cascade adaptive filtering technology that extracts trend signals by decomposing price series across multiple frequency bands. Entry conditions require all filter layers (FATL, FTL, RFTL, etc.) to align in the same direction - buy on bullish signal alignment and sell on bearish signal alignment, enabling duplex dual-direction trading. Exit conditions include closing positions when filter direction reverses, fixed take-profit and stop-loss triggers, and trailing stop mechanisms to protect accumulated profits. Position sizing supports both fixed lots and dynamic lot calculation based on account balance with customizable position ratios. Money management implements maximum position limits and per-trade maximum loss percentage controls, but still lacks comprehensive overall account risk exposure management. The strategy performs best in clearly trending markets and may generate frequent false signals leading to consecutive losses in ranging or choppy market conditions.

Strengths

  • Multi-layer cascade filter design effectively filters market noise, producing higher quality signals than single-indicator strategies
  • Duplex dual-direction trading mechanism captures profits in both uptrend and downtrend markets without relying on unidirectional movement
  • Built-in trailing stop functionality effectively protects accumulated profits and reduces the risk of profit givebacks

Weaknesses

  • Digital filters tend to generate false signals in ranging markets, causing frequent open/close cycles that erode profits through transaction costs
  • Fixed filter parameters lack adaptive adjustment mechanisms, unable to dynamically optimize based on changing market volatility regimes
  • Potential conflict between trailing stop and fixed stop-loss logic may cause stop-loss failure during extreme volatility spikes

Possible improvements

  • Add market regime identification module (e.g., ADX or volatility filter) to automatically pause trading during ranging markets and reduce false signals
  • Introduce adaptive filter parameter adjustment mechanism to dynamically optimize filter periods and thresholds based on ATR or market volatility

Risk assessment

Overall risk: Medium

  • Digital filter lag at trend reversal points may cause delayed entries and untimely exits
  • Duplex trading may trigger both long and short signals simultaneously during directionless markets, causing losses on both sides
  • Lack of overall account risk exposure limits may exceed tolerable loss ranges during extreme market conditions

Evaluation scores

Code quality3.0
Strategy logic3.0
Risk management3.0
Robustness3.0
Innovation4.0
Documentation2.0
Overall3.0

Parameters

ParameterDefaultDescription
LotSize0.1Fixed trading lot size
StopLoss500Stop loss in points
TakeProfit1000Take profit in points (unused; buy TP follows MA value)
TrailingStop200Trailing stop in points
TimeFrameH1Trading timeframe
MaxPositions1Maximum positions
MoneyManagementfalseEnable money management dynamic lot size
RiskPercent2.0Risk percentage per trade
FilterPeriod0Filter period parameter
MagicNumber22516EA magic number for order identification

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Backtests are historical simulations and do not guarantee future results. Not financial advice.

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