The ABCD Harmonic Pattern Indicator Access maps the four-point ABCD structure from fractal swing pivots and checks that the CD leg is proportional to the AB leg within tolerance. Also, it uses a deeper fractal than the AB=CD variant, so it catches larger, swing-scale patterns and prints a BUY or SELL arrow when the pattern completes at point D.
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What the Abcd Harmonic Pattern Indicator Access Indicator does on the chart
The ABCD Harmonic Pattern Indicator Access maps the four-point ABCD structure from fractal swing pivots. Also, it walks the most recent alternating swing highs and lows, labels them A, B, C and D, and tests whether the CD leg is proportional to the AB leg within a configurable tolerance.
When a valid ABCD completes at point D the indicator prints a BUY arrow (D at a swing low) or a SELL arrow (D at a swing high) and draws the pattern as a zigzag. Also, still, this variant uses a deeper fractal and a slightly looser tolerance than the AB=CD tool, so it catches larger, less-perfect patterns.
Key features and settings
- Detects the four-point ABCD harmonic structure
- Deeper fractal depth for larger, swing-scale patterns
- Draws the A-B-C-D zigzag
- BUY / SELL arrow at the D completion point
- Configurable depth and leg tolerance
- Full alert system: popup, push notification to mobile MetaTrader, email, and sound — all four channels toggle 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 |
|---|---|---|
Depth |
Fractal depth used to detect the A/B/C/D swing pivots | 6 |
Tolerance |
Allowed difference between the AB and CD leg lengths (0.25 = 25%) | 0.25 |
ArrowOffsetPoints |
Arrow offset from the D-point wick | 45 |
EnableAlerts |
Master toggle for the alert system | true |
EnablePopup |
MT4/MT5 popup dialog on signal | true |
EnablePushNotify |
Mobile push notification (configure MetaQuotes ID first) | false |
EnableEmail |
SMTP email (configure Tools -> Options -> Email) | false |
EnableSound |
Play .wav from MT4/Sounds on signal | false |
How to read signals from the Abcd Harmonic Pattern Indicator Access Indicator
Point D is the completion / potential reversal zone. Thus, the deeper fractal means signals are less frequent but swing-scale.
In practice, Entry idea (long). Wait for a BUY arrow at D (a swing low). Stop below D.
Entry idea (short). Wait for a SELL arrow at D (a swing high). Stop above D.
Exit idea. Target the C or B level of the pattern, or trail through the prior swings.
Tuning the ABCD Harmonic Pattern Indicator Access Indicator inputs
As a result, the ABCD Harmonic Pattern Indicator Access Indicator keeps a short, readable input list: a calculation period that sets how reactive it is, a signal-sensitivity control, and independent toggles for pop-up, sound, email and mobile push alerts. Also, still, hence, start with the defaults, then shorten the period on fast charts or lengthen it on higher timeframes. Alerts fire once per closed bar.
Recommended timeframes and instruments
ABCD Harmonic Pattern Indicator Access Indicator needs room for structure to form, so favour the higher timeframes.
- H1 and H4 for reliable, tradable structures.
- Daily for the cleanest patterns and levels.
Below H1 you get frequent, lower-quality structures. Next, typically, it works best on the majors and XAUUSD where swings are well defined.
How to install on MT4 and MT5
Installation is the same for every indicator on this site. Then, 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 the pattern to complete and confirm with price action before acting.
- Add a momentum check so you are not catching a falling knife.
- 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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This The tool is one of 1,383 free MT4, MT5 and TradingView indicators we publish and maintain. In addition, 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. The same one-step email opt-in below unlocks the entire library – not just this one indicator.
FAQ
What does the ABCD Harmonic Pattern measure?
It plots a clear signal layer that the ABCD Harmonic Pattern computes from recent price and volume on the chart.
Is it non-repaint?
By default the indicator only confirms a signal on the bar close, so the printed signal locks in once that bar closes. Also, hence, plainly, 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. Also, 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. Next, fast-moving instruments may need a smaller period setting.
Can I add alerts?
Yes. Then, still, 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, the 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 support and resistance basics. Are results guaranteed?
No. Trading involves risk. Results are not guaranteed. Past performance is not indicative of future results. Use this indicator as one input. Always backtest before trading live.
Category: this is part of our Support and Resistance collection. Also, still, yet, hence, browse more Support and Resistance for MetaTrader, or explore every MT4 indicator and MT5 indicator on the site.
External references
- The core method is documented in Resistance at Investopedia.
- Additional market context is at Direct market access on Wikipedia.