Supertrend is a trend-following indicator based on Average True Range (ATR) that plots a dynamic line above or below price, flipping when the trend reverses.
How It Works
Supertrend calculates a line using:
- Basic Upperband: (High + Low) / 2 + (ATR × 3)
- Basic Lowerband: (High + Low) / 2 - (ATR × 3)
The bands adjust to volatility. In high volatility, ATR is large, bands are wide. In low volatility, ATR is small, bands are tight.
In an uptrend: The Supertrend line appears below price. As price rises, the line rises with it. If price closes below the Supertrend, the trend flips.
In a downtrend: The Supertrend line appears above price. As price falls, the line falls with it. If price closes above the Supertrend, the trend flips.
Example: EUR/USD uptrend. Supertrend line at 1.0950. Price rises to 1.1050. Supertrend rises to 1.0980 (following price). Price pulls back to 1.1000 but stays above Supertrend. Uptrend intact. Price closes below Supertrend at 1.0975. Flip signal. Supertrend reverses to upside at 1.1005.
Supertrend vs. Parabolic SAR
Both are trend-following, but they differ:
| Feature | Supertrend | Parabolic SAR |
|---|---|---|
| Calculation | ATR-based, adapts to volatility | Acceleration-based, fixed logic |
| Lines | Single line that flips | Single SAR dot that moves |
| Whipsaws | Fewer (adapts to volatility) | More (mechanical acceleration) |
| Volatility adaptation | Automatic (ATR) | Manual (AF adjustment) |
| Ease of use | Simple | Slightly more complex |
Supertrend is often preferred for volatile pairs because it adapts to volatility automatically. When volatility spikes, the bands widen, filtering noise. When volatility drops, bands tighten, tracking price closely.
Parameters and Customization
Default is 10-period ATR with 3x multiplier. Adjust based on:
Higher timeframes (Daily, Weekly):
- 10 ATR, 3x multiplier (standard)
4-Hour charts:
- 7 ATR, 2–3x multiplier
1-Hour and shorter:
- 5 ATR, 2x multiplier
Tighter parameters (5 ATR, 1.5x): More frequent flips, better for ranges, worse for strong trends.
Looser parameters (14 ATR, 4x): Fewer flips, better for strong trends, worse for ranges.
Test different parameters on your pairs and timeframes to find what works.
Entry and Exit Signals
Entry on flip: When Supertrend flips, it signals a trend reversal. Some traders buy long on flip-below (uptrend start) or sell short on flip-above (downtrend start).
Entry on touch: Other traders wait for price to touch the Supertrend line, then enter in the direction of the line.
Exit on flip: When Supertrend flips back, exit the trade. This is automatic stop-loss.
Example long trade:
- Supertrend flips below price at 1.1000 (uptrend signal)
- You buy at 1.1005 as price touches Supertrend
- Supertrend rises to 1.1050 as price rallies
- Price closes below Supertrend at 1.1040
- Supertrend flips above at 1.1045 (exit signal)
- You exit at 1.1045 = +40 pips profit
Combining with Other Indicators
Supertrend works best with:
ADX confirmation: Only take Supertrend flips when ADX > 25 (strong trend). Filters false signals in choppy markets.
Moving averages: Supertrend flip + price above 50-day MA = stronger signal than flip alone.
Volume: Supertrend flip on high volume = stronger than flip on low volume.
Support/Resistance: Supertrend flip at major support/resistance = stronger reversal signal.
Real Example
GBP/USD 4-hour chart (7 ATR, 3x multiplier):
- Day 1: Supertrend below price at 1.2600. Uptrend. Price rallies to 1.2700. Supertrend at 1.2620.
- Day 2: Price rallies to 1.2750. Supertrend at 1.2650.
- Day 3: Price pulls to 1.2700 but stays above Supertrend. Uptrend intact.
- Day 4: Price falls to 1.2640 and closes below Supertrend at 1.2650. Flip signal. Supertrend reverses above at 1.2655.
- Days 5–7: Price falls to 1.2450. Supertrend falls to 1.2520. Strong downtrend confirmed.
The Supertrend clearly tracked the trend and flipped at a reasonable level.
Limitations
Supertrend is still lagging. The flip happens after a chunk of reversal has occurred. Additionally, in very choppy markets, even with tighter parameters, Supertrend produces false flips.
The key: Combine with ADX filtering or volume confirmation to reduce false signals.
Practical Rules
- Use default 10 ATR, 3x for daily charts
- Tighten parameters on shorter timeframes
- Only trade flips when ADX > 25 or when flip occurs at major support/resistance
- Treat the Supertrend line as a trailing stop, not a rigid entry
- Exit confirmed trades on the flip; don’t hold through reversals hoping for continuation
PipJournal tracks every Supertrend flip you trade, measuring your win rate on flips in strong trends (ADX > 25) versus choppy markets (ADX < 20). You’ll see whether your Supertrend edge exists or if you’re just getting whipsawed.
