Donchian Channels
DC · module 27 of 33 · levels
The highest high and lowest low of the last n candles, with their midpoint.
- 20-high
- 20-low
- Mid
- ▲/▼ where the rule triggers
The highest high and lowest low of the last 20 candles. Breaking the channel is the classic breakout rule.
How to apply it
- 1. Add it. Start with 20 on 15m (Intraday).
- 2. Read the market first. A close beyond the channel is a new n-candle extreme — the simplest possible breakout definition.
- 3. Adjust for ranges. The channel maps the range boundaries objectively, with no parameters beyond the lookback.
- 4. Manage the trade. Place the stop at 1.5 × ATR and the target at 3.5 × ATR, and only act when the chart above shows the trigger.
How it is calculated
Upper = highest high over n; Lower = lowest low over n; Middle = (Upper + Lower) ÷ 2.
Inputs
- · Period (20)
Reading it correctly
In a trend
A close beyond the channel is a new n-candle extreme — the simplest possible breakout definition.
In a range
The channel maps the range boundaries objectively, with no parameters beyond the lookback.
Settings by style
| Style | Suggested values |
|---|---|
| Intraday | 20 on 15m |
| Swing | 20 or 55 on 4h/1D |
These are conventional starting points, not optimised values. Test any change on your own pair and timeframe before relying on it.
Worked example
20-candle high 1.0920 and low 1.0860 give a midpoint of 1.0890. A close at 1.0925 is a new 20-candle high — a Donchian breakout, with 1.0890 as the natural first invalidation reference.
When it failed
On 15m AUD/USD in a slow drift, a new 20-candle high was made by 1 pip on 11 occasions in one session. Every breakout entry was stopped as price returned into the channel, because no minimum margin was required.
Limitations
- A one-pip new extreme counts as a breakout unless you add a margin.
- Channel edges are set by single spike candles.
- No volatility context — combine with ATR for a meaningful margin.
Works well alongside
- · ATR
- · ADX / DMI
- · Bollinger BandWidth
Redundant with
- · Aroon
- · Pivot-based range measures
Stacking these produces agreement by construction, which is not confirmation.
Practice exercise
On 4h EUR/USD, compare Donchian(20) breakouts with no margin against those requiring a 0.2 ATR close beyond the edge. Record the difference in follow-through.
Check your understanding
1. Donchian Channels are drawn from:
- · A moving average and standard deviation
- ✓ The highest high and lowest low of the lookback
- · ATR bands
- · Volume profile
The edges are simply the extremes of the last n candles.
2. A common fix for marginal breakouts is:
- · Shortening the lookback
- ✓ Requiring the close to exceed the edge by a fraction of ATR
- · Adding RSI
- · Using tick volume
An ATR-scaled margin filters out one-pip 'breakouts' that carry no information.