The Accumulation/Distribution indicator is OBV with one important refinement: instead of attributing all of a bar’s volume to either buying or selling based on the close, it weights volume by where the close sits within the bar’s range. That weighting makes the A/D line much more responsive to the kind of stealth positioning that happens inside individual bars.
Below is exactly how I read A/D on MT4, the divergence rule I use to flag distribution behind a rising price, and how it compares to OBV.
What is the Accumulation/Distribution Indicator?
The A/D line was developed by Marc Chaikin in the 1980s. The formula calculates a “Money Flow Multiplier” for each bar:
MFM = ((Close – Low) – (High – Close)) / (High – Low)
Then multiplies that multiplier by volume to get a “Money Flow Volume” value, and runs a cumulative sum.
The result: a line that rises when closes are consistently in the upper portion of bar ranges (accumulation) and falls when closes are in the lower portion (distribution). Unlike OBV, A/D doesn’t care about whether one bar’s close is higher or lower than the previous — it cares where the close lands inside the current bar’s high-low range.
That distinction matters. In a session where price grinds higher but each bar closes near its low, A/D will fall even though OBV would rise. The A/D divergence is often the first sign of stealth distribution behind a still-rising price.
How A/D Works on MT4
On MT4, A/D plots as a single cumulative line in a separate sub-window beneath price.
Three reads matter for forex traders.
The first is trend confirmation. When A/D rises with price during an uptrend, the move has buyers behind it (closes near highs throughout the trend). When A/D stalls or falls while price still climbs, that’s a warning the rally is being sold into intraday — the kind of subtle warning OBV often misses.
The second is A/D divergence. Bearish divergence — price higher high but A/D lower high — is the highest-edge A/D signal. It frequently leads OBV divergence by a bar or two because the bar-position weighting picks up institutional supply earlier. Bullish divergence is the inverse.
The third is A/D breakout. When A/D breaks through its own multi-day high or low while price is still range-bound, watch for price to follow within a few bars. Smart money often moves before price commits.
The same forex caveat applies as with OBV: A/D in MT4 uses tick volume. On majors with a decent broker the readings are reliable; on exotics, the quality degrades.
Key Features
- Built into MT4 by default — Insert > Indicators > Volumes > Accumulation/Distribution
- Single cumulative line — no thresholds to tune
- Bar-position weighting captures positioning OBV misses
- Non-repainting once a candle closes
- Works on every timeframe; cleanest reads on H1 and H4
- Lightweight — adds zero perceptible load to MT4
Best Settings for A/D Indicator
A/D has no configurable parameters. The only choices are timeframe and divergence lookback.
| Use Case | Timeframe | Divergence Lookback | Pair With |
|---|---|---|---|
| Scalping | M5 / M15 | 20-30 bars | 20 EMA |
| Day Trading | M30 / H1 | 50 bars | 50 EMA + RSI |
| Swing Trading | H4 / D1 | 50-100 bars | 200 EMA + structure |
Recommended starting point: H1 chart with a 50-bar divergence lookback and a 50 EMA on price.
Pros and Cons
| Pros | Cons |
|---|---|
| More responsive than OBV — bar-position weighting catches early positioning | Forex tick volume is approximate, not real exchange volume |
| Non-repainting and zero-parameter | Provides no overbought/oversold read — needs partner indicator for entries |
| Divergence signals lead OBV by 1-2 bars on average | Cumulative scale is meaningless across charts |
| Built into MT4, no install friction | Visually similar to OBV — pick one or the other, don’t run both |
How to Install A/D Indicator on MT4
A/D is built into MT4. No download needed.
Step 1: Open MT4 and select your chart.
Step 2: Click Insert > Indicators > Volumes > Accumulation/Distribution.
Step 3: Pick a high-contrast colour for the line in the popup.
Step 4: Click OK. A/D plots in a separate sub-window.
Step 5: Save the configuration via Template > Save Template as “AD-H1”.
Trading Strategy: A/D Divergence
The highest-edge A/D pattern. Best on H1 and H4 EURUSD, GBPUSD, and gold.
Setup: A/D line on a chart with a 50 EMA for trend context.
Bullish Divergence (Long):
1. Price prints a lower low
2. A/D simultaneously prints a HIGHER low
3. Wait for the next candle to close above the previous bar’s high
4. Enter long on the close of that confirmation candle
Bearish Divergence (Short):
1. Price prints a higher high
2. A/D simultaneously prints a LOWER high
3. Wait for the next candle to close below the previous bar’s low
4. Enter short on the close of that confirmation candle
Stop Loss: Just beyond the swing extreme that formed the divergence (15-30 pips on H1 EURUSD).
Take Profit: Target the most recent opposing structure. Trail with 50 EMA after 1R.
The discipline that matters: take divergence trades only with the higher-timeframe trend or at major structural levels. Counter-trend A/D divergences in the middle of a strong move tend to fail.
A/D vs OBV
Same family of cumulative volume indicators, different inputs.
| Feature | A/D | OBV |
|---|---|---|
| Volume attribution | Weighted by close position within bar range | All to up-side or down-side based on close vs prior close |
| Sensitivity | Faster — picks up intraday positioning | Slower — needs full-bar direction confirmation |
| Best for | Detecting stealth distribution | Confirming clear directional moves |
Verdict: Use A/D when you want the more responsive cumulative read; use OBV when you want the smoother, slower confirmation. Both work — pick one and learn it well rather than running both.
Frequently Asked Questions
Is the A/D indicator free?
Yes. A/D is built into every copy of MT4.
Does A/D repaint?
No. Each bar’s contribution is locked once the bar closes.
Does A/D work on forex?
Yes — using MT4 tick volume. On majors and metals the line is reliable; on exotics, expect more noise.
What’s the best timeframe for A/D?
H1 and H4 give the cleanest divergence reads. M5 A/D is too noisy unless you’re scalping.
A/D vs OBV — which should I use?
A/D is more sensitive (catches early positioning); OBV is smoother (cleaner trend confirmation). Most traders pick one; if you’re divergence-hunting, A/D wins; if you’re trend-following, OBV is fine.
Download Enhanced A/D Indicator for MT4 – Free
The standard A/D ships with MT4. Our enhanced version adds:
- Automatic divergence detection — bullish and bearish divergences highlighted
- Customisable alerts — popup, email, push when divergence forms
- Slope-coloured line — instantly see whether A/D is rising or falling
- Adjustable divergence lookback (default 50 bars)
Platform: MT4 (Build 1000+)
File type: .ex4
File size: 15 KB
Version: 1.2
Last updated: May 2026
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- The non-repainting A/D Indicator file (.ex4) – install in 30 seconds
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- Best-performing settings for scalping, day trading, and swing trading
- The exact divergence rules I use in live trading
- Weekly trading insights from a developer with 16+ years of market experience
Download the Accumulation Distribution Indicator – Free Instant Access
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- The non-repainting Accumulation Distribution Indicator file (.ex4) – install in 30 seconds
- Step-by-step installation guide with chart screenshots
- Best-performing settings for scalping, day trading, and swing trading
- The exact entry and exit rules Dom uses in live trading
- Weekly trading insights from a developer with 16+ years of market experience
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Overall Rating: 4.4/5
| Category | Rating |
|---|---|
| Accuracy | 4.4/5 |
| Ease of Use | 4.6/5 |
| Features | 4.3/5 |
| Value | 4.7/5 |
Related Indicators
- OBV Indicator MT4 – The simpler cumulative volume cousin of A/D
- Chaikin Money Flow MT4 – The bounded oscillator built on the same money-flow formula
- MFI Indicator MT4 – Volume-weighted RSI for overbought/oversold reads
- Best Volume Indicators for MT4 – The full ranked list
- How to Install Custom Indicators on MT4
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