The line flips green, an arrow prints, and you buy the candle that is still ticking. Two minutes later the candle closes back the other way, the flip un-happens, and you are long a trend that never started. The signal you chased was real for about ninety seconds. That is the Supertrend trap, and it has nothing to do with the indicator being bad.
By the end of this guide you will be able to read a Supertrend flip you can actually trust, tell the difference between the line moving normally and a signal that never settled, and set the tool to the market in front of you instead of the number it shipped with.
Key Findings
- Supertrend is one line with two states: it sits below price in an uptrend and above it in a downtrend, placed a multiple of ATR from the candle's midpoint, and flips when price closes through it.
- It follows, it does not predict: the flip confirms a change of direction after price has already moved, so it is a trend filter and a trailing reference, not a top or bottom caller.
- The multiplier is the real dial: a small multiplier flips fast and catches noise, a large one flips late but filters whipsaw. The 10-period, 3-multiplier default is a starting point, not a law.
- A flip is only final at the close: the live candle can drag the line and move a fresh flip around until the bar closes. Act on the settled flip, not the flickering one.
What does the Supertrend indicator actually measure?
Supertrend measures trend direction as a single on-or-off line, with the switch level set by volatility. It plots one line on your price chart. In an uptrend that line sits below price and usually shows green; in a downtrend it jumps above price and shows red. There is no middle state. Price is either above the line or below it.
Where the line sits is decided by Average True Range, the same volatility engine behind the ATR indicator . The indicator takes the midpoint of each candle’s high and low, then places its line a multiple of ATR away from that midpoint. When a candle closes on the far side of the line, the line flips to the other side and its colour changes. That flip is the whole signal. Everything else is the line trailing along, giving the trend room set by how much the market is actually moving.
ATR itself is not new. It comes from J. Welles Wilder’s 1978 book New Concepts in Technical Trading Systems, which introduced a family of volatility-scaled tools that traders still lean on ( Investopedia ). The Supertrend overlay that wraps ATR into a flipping trend line is commonly credited to French trader Olivier Seban. So the tool is younger than its parts, but the volatility idea underneath it has held up for decades.
What are the best Supertrend settings?
Start with a 10-period ATR and a multiplier of 3, the defaults most platforms ship. Then treat the multiplier as the dial you actually turn, because it controls how much noise the line absorbs before it flips.
A smaller multiplier, around 1.5 or 2, drags the line in close to price. It reacts fast and catches trend changes early, but it also flips on every shakeout, so you get more signals and more of them are wrong. A larger multiplier, 4 or more, holds the line far from price. It shrugs off small pullbacks and only flips on a real change of direction, at the cost of handing back more of the move before it switches. The ATR period matters less. Ten is fine on most timeframes, and shortening it mostly makes the whole line twitchier without adding information.
Supertrend vs a moving average: which reads trend better?
They both follow trend, and traders reach for them for the same job, but they answer in different tones. A moving average is a smooth line that price crosses back and forth all day, so on its own it rarely gives a clean directional call. Supertrend hands you a binary state instead: below price or above it, switching only on a close through the line.
| Factor | Supertrend | Moving average |
|---|---|---|
| What it outputs | A binary trend state, up or down | A smoothed average price line |
| Distance driver | Average True Range (volatility) | Fixed lookback period |
| Signal event | Line flips when price closes through it | Price crosses the average, or two averages cross |
| Ease of reading | Clear on-off flip | Softer, needs interpretation |
| Common weakness | Whipsaws in a tight range | Lags and gets crossed constantly in chop |
| Best use | Trend filter and trailing stop reference | Mean and slope context |
Neither wins in the abstract. The moving average gives you a feel for the mean and the slope of a trend, which the moving average crossover strategy leans on directly. Supertrend gives you a cleaner yes-or-no on direction and a level to trail behind. Plenty of traders run both, using the average for context and the Supertrend flip as the trigger, the same way leading and lagging tools cover each other’s blind spots.
RelicusRoad Pro
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Get RelicusRoad ProDoes the Supertrend indicator repaint?
A Supertrend built on closed candles does not repaint its history. Once a candle closes, the ATR value it fed and the flip it produced are locked, and the line to the left of the current bar should not move when you reload the chart.
The live candle is where people get burned. While the current bar is still forming, both price and ATR keep changing, so the Supertrend line and any flip on that bar can shift right up until the candle closes. That is normal intrabar movement, not a fault. The error is treating a mid-candle flip as a done deal, entering on it, and then watching the candle close back the other way so the flip disappears. We mapped this exact trap in the non-repaint forex indicator guide , and the discipline is the same here: wait for the close. If you want to prove your own tool behaves, mark where the line sat at a past candle’s close, reload, and confirm it has not moved.
How does RelicusRoad Pro handle trend flips?
RelicusRoad Pro is built around the idea that a signal only counts once the candle that made it has closed. Every level and flip it commits is decided at the close and fixed there, on the non-repaint side of the line above, so you are not staring at an arrow wondering whether it will still be there in a minute. It scales the room a trade is given to how much the market is actually moving, the same volatility logic Supertrend uses, and it runs the same way across MT4, MT5, and TradingView so the read you trust on one platform is the read you get on the next.
None of that is pitched as press-the-button trading, and that is on purpose. A trend tool sharpens when direction has actually changed and gives you a level to lean on. It does not decide whether the trade in front of you is worth taking. That judgement stays with you. What a settled flip removes is the reflex to chase a signal that had not finished forming, which quietly drains more accounts than a bad idea ever does.
Frequently asked questions
What is the Supertrend indicator? Supertrend is a trend-following overlay that plots one line on your chart. The line sits below price when the market is trending up and above price when it is trending down, and it is placed a multiple of Average True Range away from the candle’s high-low midpoint. When price closes on the other side of the line, the line flips sides and its colour changes. It gives you a running read of trend direction and a moving level to lean a stop against.
What are the best Supertrend settings? The common default is a 10-period ATR with a multiplier of 3, and that is a sensible starting point on most pairs and timeframes. The multiplier is the dial that matters. A smaller value like 1.5 or 2 pulls the line closer to price, so it flips more often and reacts faster but catches more noise. A larger value like 4 keeps the line further away, so it flips late but ignores small shakeouts. Adjust the multiplier to the market before you touch the ATR period.
Does the Supertrend indicator repaint? A Supertrend built on closed candles does not repaint its history. Once a candle closes, the ATR value and the flip it produced are fixed and should not move. The catch is the live candle: while the current bar is still forming, ATR and price are both changing, so the line and a fresh flip can shift until that candle closes. That is normal intrabar movement, not a broken indicator. The mistake is trading a flip mid-candle as if it were final, because it can reverse before the close.
What is the difference between Supertrend and a moving average? Both follow trend, but they behave differently. A moving average is a smoothed line that price weaves above and below constantly, so it rarely gives a clean directional state on its own. Supertrend gives you a binary read: it is either below price or above it, with no middle ground, and it only switches when price closes through it. That makes Supertrend easier to read as an on-off trend filter, while a moving average gives you a smoother sense of the mean. Many traders run both, using the average for context and Supertrend for the flip.
How do you trade Supertrend without chasing? Treat the flip as a filter, not a starting gun. Rather than entering the instant the line flips, wait for a close in the new direction and ideally one confirmation read beside it, then look for a pullback toward the Supertrend line to enter with the trend rather than at the most extended point. Use the line itself as a trailing reference for your stop, and size the trade to volatility so a single whipsaw flip does not decide your week. The tool keeps you on the right side of the trend; it does not tell you the idea is worth taking.
Supertrend will not call the exact turn for you. It tells you when direction has genuinely changed, gives you a level to trail behind, and, read at the close, keeps you from chasing a flip that was never going to hold.
See how RelicusRoad Pro settles every signal at the candle’s close →