Brain Trend Indicator for MT4 and MT5

Written by Dominic Walsh · Published 30 Jul 2026 · Last updated 18 Sep 2026

Underneath the name is a trailing stop. The brain trend indicator hangs a band two average ranges from the close and ratchets it one way until price crosses. What makes this build different is the gate: the stochastic reading has to agree before a flip counts.

This build ships as a compiled .ex4 for MT4 and .ex5 for MT5; the screenshots below come from EURUSD H1.

Platforms	MT4 (.ex4) + MT5 (.ex5)
Chart window	Main price chart
Plots	4: BrainTrend Up, BrainTrend Down, Trend Flip Buy, Trend Flip Sell
Alerts	popup, push notification, email, sound
Inputs	14

The plots this build puts on screen

Four arrow plots on the price chart.

`BrainTrend Up` dots each bar dodger blue.

`BrainTrend Down` dots it tomato instead.

`Trend Flip Buy` uses arrow 233 in aqua.

`Trend Flip Sell` uses arrow 234 in magenta.

Dots sit `InpDotOffset` `25` points off the bar.

• BrainTrend Up: arrow, dodger blue, width 1, arrow code 159
• BrainTrend Down: arrow, tomato, width 1, arrow code 159
• Trend Flip Buy: arrow, aqua, width 3, arrow code 233
• Trend Flip Sell: arrow, magenta, width 3, arrow code 234

How the Brain Trend Indicator does its maths

The band

iATR at `InpAtrPeriod` `7` measures the range. `InpAtrMult` `2.0` sets the distance. The long stop sits that far under the close, the short stop that far above.

Ratcheting

A stop only moves one way. While the trend is up, the long stop rises with price and never falls. That is what makes it a trailing level rather than a band.

The gate

A cross alone does not flip it. `InpStochK` `9` with `InpStochD` `3` and `InpStochSlow` `3` gives a reading, and it must sit the right side of `InpStochMid` `50.0`.

What to look for

Dot colour is the current trend state.

A big arrow marks where that state flipped.

Dots run every bar, so a colour run is a trend leg.

A cross without stochastic agreement changes nothing.

Seven bars of range makes the band react quickly.

The stop never moves against the trend.

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

`EnableAlerts` governs the flip alerts and ships true with `EnablePopup`. Set `EnablePushNotify` for a phone, `EnableEmail` for mail, or `EnableSound` to sound `SoundFile`. Those three arrive off and flips report on a closed bar.

Every Brain Trend Indicator input

Core settings

Setting	What it does	Default
InpAtrPeriod	ATR period (band width). Bars behind the range figure, `7`.	7
InpAtrMult	ATR multiplier. Ranges of distance for the stop, `2.0`.	2.0
InpStochK	Stochastic %K period. Main stochastic window, `9`.	9
InpStochD	Stochastic %D period. Signal length, `3`.	3
InpStochSlow	Stochastic slowing. Slowing pass, `3`.	3
InpStochMid	Gate level for %K (classic 50). Gate level the reading must clear, `50.0`.	50.0
InpDotOffset	Dot offset from the bar (points). Points from dot to bar, `25`.	25

Display settings

Setting	What it does	Default
InpArrowOffset	Flip arrow offset (points). Points from flip arrow to bar, `70`.	70

Alert settings

Setting	What it does	Default
EnableAlerts	Master switch, `true`.	on
EnablePopup	(see inputs panel)	on
EnablePushNotify	(see inputs panel)	off
EnableEmail	(see inputs panel)	off
EnableSound	(see inputs panel)	off
SoundFile	Which clip plays, `”alert.wav”`.	alert.wav

Choosing where it lives

A seven-bar range with a two times multiplier is a fairly tight stop. EURUSD H1 is the reference chart. Flips come a few times a week there. On M5 the stop gets hit constantly. On H4 each flip marks a real change.

When the Brain Trend Indicator fails

A tight trailing stop flips often in a range.

The gate can block a genuine early turn.

Seven bars of range reacts hard to one big bar.

Dots on every bar make a busy chart busier.

Copy the compiled Brain Trend Indicator file into your MQL4/Indicators folder, and the MT5 build into MQL5/Indicators, then restart the terminal and drag it onto a chart. The step-by-step guide with screenshots is at how to install MT4 and MT5 indicators.

Download the Brain Trend Indicator for MT4 and MT5

The zip holds the compiled Brain Trend Indicator build for MT4 and MT5, plus a short README. Compiled files only, no source. Enter your email below and the download link arrives in your inbox.

FAQ

What does InpStochMid 50.0 gate?

The flip itself. Price crossing the trailing stop is only the trigger; the stochastic reading also has to sit on the matching side of fifty. That second test removes a share of the flips that a stop alone would produce.

Why does the InpAtrMult band never retreat?

Because it is a trailing level. While the trend is up the long stop ratchets higher with price and never falls back, which means a flip needs a real move against the trend rather than a pause.

Is InpAtrMult 2.0 tight or loose?

Fairly tight for a trailing stop. Two average ranges from the close gets touched regularly on a ranging chart, and raising it to three gives fewer flips at the cost of reacting later to a real turn.

What do the BrainTrend Up dots add?

State at a glance. The big arrows only mark flips, so without the dots you would have to remember which side you were on; the dots repeat that answer on every bar.

Are results guaranteed?

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