The 3 Tier London Breakout Indicator plots three nested rolling channels at 12, 24, and 48 bars: tight yellow, medium orange, wide blue. Also, the two inner channels act as visible early-warning levels; the outer blue channel is the breakout trigger. When the close pierces the outer high a green BUY arrow prints; closing below the outer low fires a red SELL. Also, works on any timeframe, any broker server time.
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What the 3 Tier London Breakout Indicator does on the chart
The 3 Tier London Breakout Indicator plots three nested rolling channels of different lookback lengths: a tight yellow channel (12 bars), a medium orange channel (24 bars), and a wide blue channel (48 bars). Also, still, the channels track the highest high and lowest low over each lookback window, so they continuously frame recent price action at three different scales.
When the current bar’s close pierces ABOVE the wide blue (48-bar) channel high a green BUY arrow prints. Thus, when the close pierces BELOW the wide blue channel low a red SELL arrow prints. Hence, the two tighter inner channels (yellow + orange) act as visible early-warning levels and as trailing-stop guides after entry.
Key features and settings
- Three nested rolling channels (12 / 24 / 48 bars by default)
- Color-coded so the three timeframes of structure are visible at a glance
- BUY arrow on close breakout above the wide channel high
- SELL arrow on close breakout below the wide channel low
- Timezone-agnostic – works on any chart, any broker server time
- Full alert system: popup, push notification to mobile MetaTrader, email, and sound — all four channels can be toggled independently from the inputs panel. Alerts fire once per closed bar so you never get spammed mid-tick.
- Built for both MT4 and MT5; works on every timeframe and every symbol your broker offers.
- Lightweight code that does not slow down the chart.
| Setting | Description | Default |
|---|---|---|
Tier1Bars |
Lookback for the tight inner channel | 12 |
Tier2Bars |
Lookback for the medium channel | 24 |
Tier3Bars |
Lookback for the wide outer channel (signal trigger) | 48 |
ArrowOffsetPoints |
Arrow offset | 40 |
EnableAlerts |
Master alert toggle | true |
EnablePopup |
Popup on wide-channel breakout | true |
EnablePushNotify |
Mobile push | false |
EnableEmail |
SMTP email | false |
EnableSound |
Play sound | false |
How to read signals from the 3 Tier London Breakout Indicator

Only breakouts of the WIDE blue channel trigger signals. Next, the tighter channels are visual context.
Entry idea (long). Wait for a green BUY arrow. Then, stop sits just inside the prior wide channel low. Target = the channel height projected upward.
Entry idea (short). Wait for a red SELL arrow. Also, still, yet, stop just inside the prior wide channel high.
Exit idea. Trail with the medium orange channel – exit on a close back inside the tight yellow channel.
Tuning the 3 Tier London Breakout Indicator inputs
Start with the defaults, then tune for your market. In practice, Tier1Bars (default 12) sets the averaging length — raise it for smoother, slower signals or lower it for faster, more sensitive ones; Tier2Bars (default 24) sets the averaging length — raise it for smoother, slower signals or lower it for faster, more sensitive ones; Tier3Bars (default 48) sets the averaging length — raise it for smoother, slower signals or lower it for faster, more sensitive ones. Every alert channel — pop-up, sound, email and mobile push — toggles independently in the same inputs panel, and alerts fire once per closed bar.
Recommended timeframes and instruments
this indicator is most effective around session opens and range expansions.
- M15 to H1 for London and New York breakouts.
- M5 for faster index breakouts.
Avoid the low-liquidity gaps between sessions. Thus, truly, it works well on EURUSD, GBPUSD, US30 and NAS100.
How to install on MT4 and MT5

Installation is the same for every indicator on this site. Also, still, hence, plainly, unzip the download, copy the compiled .ex4 into your MT4 MQL4/Indicators folder (or the .ex5 into MT5 MQL5/Indicators), refresh the Navigator, then drag it onto the chart. For the full step-by-step with alert setup and troubleshooting, see our guide to installing MT4 and MT5 indicators.
Best practices and tips
- Wait for a confirmed close beyond the level, not an intrabar poke.
- Skip breakouts late in a session when follow-through is weak.
- Wait for the bar to close before acting on a signal.
- Backtest your configuration on at least 200 closed bars before trading live.
- Keep position sizing small while you learn how the tool behaves on your instrument.
- Review your results weekly and prune settings that underperform.
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Related on forexmt4systems.com: London Session Breakout Strategy.
Built by forexmt4systems.com
This it is one of 1,383 free MT4, MT5 and TradingView indicators we publish and maintain. Also, every tool ships with ready-to-use compiled MT4 (.ex4) and MT5 (.ex5) files, a 4-channel alert system (popup + mobile push + email + sound), and is loaded on EURUSD H1 before release to confirm it draws cleanly without repainting. Typically, the same one-step email opt-in below unlocks the entire library – not just this one indicator.
FAQ
What does the 3 Tier London Breakout measure?
It plots a clear signal layer that the 3 Tier London Breakout computes from recent price and volume on the chart.
Is the indicator non-repaint?
By default the indicator only confirms a signal on the bar close, so the printed signal locks in once that bar closes. Next, some users prefer the early intra-bar mode for faster signals — both options are in the inputs.
Which timeframe should I use?
There is no single best timeframe. Then, still, m15 to H1 is a common starting point for intraday traders, and H4 to D1 works for swing traders. Backtest the configuration on the timeframe you actually trade.
Does it work on instruments other than forex?
It works on any instrument MT4 and MT5 supports — forex majors, gold (XAUUSD), indices like US30 and NAS100, and major cryptos. Thus, fast-moving instruments may need a smaller period setting.
Can I add alerts?
Yes. In addition, pop-up, sound, push, and email alerts live in the inputs panel. On MT4 and MT5 the alert plays on the bar close that triggers the signal. Thus, yet, hence, this indicator ships with full alert functionality built in: popup alerts on the chart, push notifications to mobile MetaTrader, email alerts, and a sound alert with a configurable .wav file. you toggle each channel independently from the inputs panel (EnableAlerts, EnablePopup, EnablePushNotify, EnableEmail, EnableSound). Alerts trigger once per closed bar.
For external background reading, see the technical indicator basics. Are results guaranteed?
No. Trading involves risk. Results are not guaranteed. Past performance is not indicative of future results. Use the tool as one input. Always backtest before trading live.
Category: this is part of our Signal and Forecast collection. Next, browse more Signal and Forecast for MetaTrader, or explore every MT4 indicator and MT5 indicator on the site.
External references
- For background on this concept, see the Foreign Exchange Market on Wikipedia.
- For broader market context, see FX education at the CME Group.