Fabii Ehlers Adaptive Bands
- Indicators
-
Fabien Georges Andre Guillemaud
I develop custom indicators and trading tools for MetaTrader 5. - Version: 2.0
Know exactly when the trend flips — before you miss the move. Signals lock on bar close, no repaint.
Any pair, any timeframe. Free demo in the Strategy Tester.
▬▬▬ THE PROBLEM ▬▬▬
Most trend tools give you a direction — but they keep repainting until the bar closes, or they lag so far behind that the entry is gone by the time they confirm. You end up either chasing or sitting out clean moves. Every bar you misread the regime is a trade you size wrong or skip entirely.
▬▬▬ THE SOLUTION ▬▬▬
Fabii Ehlers Adaptive Bands gives you a clear regime at all times: green bars and a rising channel when the trend is up, red bars and a falling channel when it is down. The bands adapt to current volatility — tight in ranging markets, wider when momentum builds. Signals are final on bar close. What you see does not change.
▬▬▬ HOW IT WORKS ▬▬▬
A volatility-adaptive moving average adjusts its speed in real time based on price fluctuation. A nonlinear Ehlers filter then smooths that average, weighting recent bars by momentum rather than time. Two percentile bands — calibrated on the historical distribution of price-to-filter distance — define the regime threshold. When price closes beyond a band, the regime flips, the bars recolor, and an ATR-anchored arrow marks the entry bar. No lookback adjustment, no bar shifting.
▬▬▬ KEY FEATURES ▬▬▬
- Volatility-adaptive baseline — which means you get a faster signal in trending conditions and fewer false flips in range.
- Percentile regime bands — which means the breakout threshold is calibrated to the instrument's own history, not a fixed multiplier.
- ATR-anchored entry arrows — which means your visual entry point scales with current volatility, not with pip counts.
- Bar coloring by regime — which means you read the trend at a glance without studying the lines.
- Popup, sound and push alerts on regime change — which means you do not have to watch the chart.
- No repaint — signals are final on bar close.
- Works on any pair, any timeframe, any market (forex, indices, metals, crypto).
▬▬▬ INPUTS ▬▬▬
| Parameter | Description | Default |
|---|---|---|
| Source | Price input for the adaptive MA | Close |
| Minimum MA Period | Fastest MA response (high volatility) | 3 |
| Maximum MA Period | Slowest MA response (low volatility) | 30 |
| Volatility Period | Lookback for volatility measurement | 9 |
| Filter Length | Number of Ehlers filter observations | 9 |
| Momentum Length | Comparison distance for Ehlers weights | 15 |
| Percentile Length | Historical window for band calibration | 100 |
| Percentile Level | Rank threshold for band width | 75 |
| Upper Band Multiplier | Scales the upper regime band | 0.7 |
| Lower Band Multiplier | Scales the lower regime band | 0.7 |
| Arrow Offset ATR | Arrow distance from band in ATR units | 0.5 |
| ATR Period | Period for arrow anchor calculation | 14 |
| Show Adaptive Filter | Show or hide the baseline | true |
| Show Percentile Bands | Show or hide the bands | true |
| Show Arrows | Show or hide entry arrows | true |
| Color Bars | Color bars by active regime | true |
| Alert Popup | Popup alert on regime change | false |
| Alert Sound | Sound alert on regime change | false |
| Alert Push | Push notification on regime change | false |
| Sound File | Sound file name | alert.wav |
▬▬▬ HOW TO USE IT ▬▬▬
- Attach to any chart. Default settings work on most instruments from M30 upward.
- Wait for a bar to close beyond a band. An arrow appears below (bullish) or above (bearish) the band.
- Enter in the direction of the new regime on the next bar open.
- Use the opposite band as your trailing stop — it moves with volatility.
- Exit when an arrow in the opposite direction appears on a closed bar.
▬▬▬ PROOF / WHY TRUST IT ▬▬▬
Signals are evaluated once per bar at close — the arrow you see after the bar closes will not move. Test this yourself: run the Strategy Tester on your own charts before buying. No DLL required. No external data feed.
I answer support messages within 24 hours and update the indicator when issues are reported.
▬▬▬ PART OF THE FABII SUITE ▬▬▬
Follow my profile for upcoming indicators built on the same framework: https://www.mql5.com/en/users/fabienfxtrades/news
▬▬▬ RATING ▬▬▬
Question or issue? Message me first — I answer within 24h and fix fast. If the indicator saved you time on a few trades, a short review — even one line about which pair or timeframe you use it on — helps other traders find it.
▬▬▬ GET IT ▬▬▬
Get it on your charts in 2 minutes. Test it free in the Strategy Tester first. Launch price is $30 and will rise after the first sales. I answer within 24h. (Past performance does not guarantee future results. Trade responsibly.)
