Directional Indicators
ADX — Average Directional Index
How to determine trend strength, filter signals, and use ADX in trading strategies.
7 min readUpdated: 2026-03-27
What is the ADX indicator?
ADX (Average Directional Index) is a popular technical analysis tool used to measure the strength of a trend.
The indicator does not show direction, only the strength of the current trend — whether bullish or bearish.
It is usually calculated over a 14-period moving average but can be applied on any timeframe.
How to use ADX
ADX ranges from 0 to 100. The higher the value, the stronger the trend.
- ADX below 20 — no trend (range market).
- ADX crossing 20 — a new trend is forming.
- ADX 20–40 — trend confirmation.
- ADX above 40 — strong trend.
- ADX above 50 — very strong trend.
- ADX above 70 — rare extreme trend.

Platform Settings
ADX parameters can be configured by period, threshold, and timeframe. It can be used as an entry signal or as a trend filter.
Strong trend — above 25 | Weak trend — below 25

- Timeframe: recommended from 1h and above.
- Trigger Action: TREND_STRONG or TREND_WEAK.
- ADX Length: default 14 (also 12, 18, 21).
- ADX Threshold: typically 20–26.
- Indicator mode: Cross_only, Trend_Filter, Trend_for_buy.
Advantages and Disadvantages
| Advantages | Disadvantages |
|---|---|
| Measures trend strength. | May generate false signals. |
| Helps identify entry and exit points. | Lagging indicator. |
| Can indicate overbought/oversold conditions. | Limited market context. |
Combining with Other Indicators
1. ADX + EMA
EMA shows direction, ADX confirms trend strength.
- Logic: ADX filters false EMA crossovers.
- Entry: EMA crosses up + ADX above 25 and rising.
- Exit: ADX declines from high levels.
2. ADX + Oscillators
- ADX < 20: range market — oscillators work best.
- ADX > 30: ignore counter-trend signals.
- Use: entries on pullbacks.
3. ADX + Support/Resistance
- True breakout: ADX rises with breakout.
- False breakout: ADX remains low.
Decision Matrix
| ADX State | Indicator | Tactics |
|---|---|---|
| Rising (25 → 50) | EMA / Levels | Trade with the trend |
| Falling (from 40+) | RSI / Stochastic | Take profits |
| Low (<20) | Oscillators | Range trading |
Practical Tip
Do not use ADX alone for entries. Use it as a filter:
- Check ADX (is there a trend?).
- Check EMA (direction).
- Use oscillator/pattern for entry timing.