Supertrend MTF Alert Indicator (AtrPeriod 10, Multiplier 3.0)

Written by Dominic Walsh · Published 10 Jul 2026 · Last updated 20 Aug 2026

The supertrend mtf alert indicator builds an ATR trailing line on the chart. It rebuilds that same line on a higher timeframe. Supertrend Up and Supertrend Dn plot the trailing line. Buy and Sell arrows mark a flip, once both timeframes agree.

This build ships as supertrend-mtf-alert-indicator-mt5-indicator-forexmt4systems.ex4 for MT4 and supertrend-mtf-alert-indicator-mt5-indicator-forexmt4systems.ex5 for MT5; the screenshots below come from EURUSD H1.

Platforms	MT4 (.ex4) + MT5 (.ex5)
Chart window	Main price chart
Plots	4: Supertrend Up, Supertrend Dn, Buy, Sell
Alerts	popup, push notification, email, sound
Inputs	12

What the Supertrend Mtf Alert Indicator draws on the chart

Supertrend Up (lime, DRAW_LINE) plots the trailing support line while price sits in an uptrend.

Supertrend Dn (red, DRAW_LINE) plots the trailing resistance line while price sits in a downtrend.

Buy (lime, DRAW_ARROW, code 233) marks a bar where the trend flips up and the higher timeframe agrees.

Sell (red, DRAW_ARROW, code 234) marks a bar where the trend flips down and the higher timeframe agrees.

• Supertrend Up: line, lime, width 2
• Supertrend Dn: line, red, width 2
• Buy: arrow, lime, arrow code 233
• Sell: arrow, red, arrow code 234

How the Supertrend Mtf Alert Indicator calculates its values

ATR bands and the flip

The code builds a Wilder ATR from AtrPeriod bars, 10 by default. It sets an upper and lower band at the bar’s midpoint. Each one sits Multiplier times that ATR away. Multiplier defaults to 3.0.

Each band only moves the way that tightens the stop. The up band rises with price; the down band falls with price. That holds until price closes through the far band, and the trend flips.

The higher timeframe filter

A second copy of the same band math runs on HigherTF, PERIOD_H4 by default. It rebuilds on each new chart bar. UseMTFFilter, on by default, only lets an arrow print when that higher direction matches the flip.

ArrowGapATR sets the arrow’s gap from price in ATR units, not a fixed pip value. The gap scales with volatility instead of staying fixed.

Warm-up and updates

The indicator needs at least AtrPeriod plus five bars before it will compute at all. Below that floor it draws nothing.

The higher timeframe cache only rebuilds when a new chart bar forms, not on every tick. That keeps the MTF check cheap to run.

How to read the signals

The line switches from Supertrend Dn to Supertrend Up, or back, on the bar where price closes through the far band.

A Buy or Sell arrow only prints on a flip bar when UseMTFFilter is on and the higher timeframe agrees. A flip against it still changes the line color, but gets no arrow.

ShowArrows can turn the arrow layer off. The trailing line and the alert channels stay active either way.

Once a bar sets a color, it does not switch back without a fresh close through the opposite band.

Alert channels in this build: popup, push notification, email and sound, one message per closed bar.

EnableAlerts, EnablePopup, EnablePushNotify, EnableEmail and EnableSound cover the four channels. The check runs once on the last closed bar. It fires a BUY or SELL message on a fresh arrow.

Every Supertrend Mtf Alert Indicator input

Core settings

Setting	What it does	Default
AtrPeriod	ATR period (Wilder). AtrPeriod sets the Wilder ATR length behind both bands. It defaults to 10 bars.	10
Multiplier	ATR band multiplier. Multiplier sets how many ATR units separate the band from price. It defaults to 3.0.	3.0
HigherTF	MTF confirmation timeframe. HigherTF picks the confirmation timeframe for the MTF filter. It defaults to PERIOD_H4.	PERIOD_H4
UseMTFFilter	arrow only when HTF trend agrees. UseMTFFilter switches the higher timeframe check on or off. It defaults to true.	on

Display settings

Setting	What it does	Default
ShowArrows	draw BUY/SELL flip arrows. ShowArrows toggles the Buy and Sell arrow layer. It defaults to true.	on
ArrowGapATR	arrow offset in ATR units. ArrowGapATR sets the arrow gap in ATR units, not points. It defaults to 0.6.	0.6

Alert settings

Setting	What it does	Default
EnableAlerts	(see inputs panel)	on
EnablePopup	(see inputs panel)	on
EnablePushNotify	(see inputs panel)	off
EnableEmail	(see inputs panel)	off
EnableSound	(see inputs panel)	off
SoundFile	(see inputs panel)	alert.wav

Settings that fit your chart

The screenshot runs the supertrend mtf alert indicator on EURUSD H1. The default H4 filter sits one step above it. The same AtrPeriod and Multiplier pair also works on other forex majors. Just set HigherTF above the chart timeframe. A pair with steady trends tends to give cleaner flips than one that chops sideways.

When the Supertrend Mtf Alert Indicator fails

In a tight range the band flips sides often. Even with the higher timeframe filter on, a ranging chart up there can agree with both flips in a row.

The bands only tighten, never widen, until a flip. A sudden gap or spike can push price through both bands at once. The flip and any arrow then lag the real move.

If HigherTF sits too close to the chart timeframe, the filter adds little real confirmation. Both lines end up reading nearly the same price action.

There is no separate volume check here. Only the ATR bands and the higher timeframe direction decide when an arrow prints.

Copy supertrend-mtf-alert-indicator-mt5-indicator-forexmt4systems.ex4 into MQL4/Indicators and supertrend-mtf-alert-indicator-mt5-indicator-forexmt4systems.ex5 into MQL5/Indicators, then restart the terminal and drag the Supertrend Mtf Alert Indicator onto a chart. The step-by-step guide with screenshots is at how to install MT4 and MT5 indicators.

Download the Supertrend Mtf Alert Indicator for MT4 and MT5

The zip supertrend-mtf-alert-indicator-mt5-indicator-forexmt4systems.zip holds supertrend-mtf-alert-indicator-mt5-indicator-forexmt4systems.ex4, supertrend-mtf-alert-indicator-mt5-indicator-forexmt4systems.ex5 and a short README, compiled files only. Enter your email below and the download link arrives in your inbox.

FAQ

What does the HigherTF input do on the supertrend mtf alert indicator?

HigherTF sets which higher timeframe the code checks before letting an arrow print. It defaults to PERIOD_H4. A second ATR-band line runs on that timeframe. With UseMTFFilter on, a chart flip only earns a Buy or Sell arrow when the higher direction agrees. Turning UseMTFFilter off removes that check entirely.

Why does Multiplier default to 3.0 instead of a smaller number?

Multiplier sets how many ATR units the trailing band sits from price. A value of 3.0 keeps the band far enough back that ordinary noise does not force a flip on every pullback. That comes at the cost of a wider stop than a tighter setting gives. A smaller Multiplier flips sooner but tighter.

How is ArrowGapATR different from a fixed pip offset?

ArrowGapATR multiplies the current ATR reading, not a fixed point value. Buy and Sell arrows sit further from price when volatility runs high, and closer when it stays calm. The default is 0.6 times the current ATR. That keeps the gap sensible across both quiet and fast markets.

Can I turn off the arrows but keep the alert emails?

Yes. ShowArrows only controls whether Buy and Sell arrows draw on the chart. The check still watches the Supertrend Up and Supertrend Dn line for a fresh flip. It can fire through EnableEmail or the other channels regardless of that setting. The trailing line itself also keeps drawing either way.

Are results guaranteed?

No. Trading involves risk. Results are not guaranteed; past performance is not indicative of future results. Use the Supertrend Mtf Alert Indicator as one input. Always backtest before trading live.