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Donchian Channel

A channel formed by the highest high and lowest low over a set period — used in classic breakout systems.

Donchian Channels plot two lines: the highest high of the last N periods and the lowest low of the last N periods. The space between is the channel. The most famous use is the 20-period Donchian Channel — buying when price breaks above the upper line and selling when it breaks below the lower line. This is the foundation of the legendary Turtle Trading system. The magic of Donchian Channels is their simplicity. There's no math beyond max() and min(). The signal is binary: new 20-day high = breakout long, new 20-day low = breakout short. It's the cleanest possible breakout system. Donchian breakouts work in trending markets and fail in choppy ones. The win rate is typically below 50%, but the winners are big enough to make the system profitable over time. It's a positive-expectancy system that requires patience and discipline.

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Real trade example

Gold's breakout above the 55-day Donchian high in February 2024 at $2,080 launched the rally to $2,790 — a perfect Turtle-style entry that delivered over 700 dollars of gains.

Frequently asked about donchian channel

What is a donchian channel in trading?+
A channel formed by the highest high and lowest low over a set period — used in classic breakout systems.
When will I see donchian channel used in real trading?+
In trend-following systems and on the charts of mechanical traders. Less popular than Bollinger or Keltner but still valued for its simplicity.
What is the most common mistake traders make with donchian channel?+
Trading every Donchian breakout without a trend filter. In ranging markets, Donchian breakouts fail constantly. Use a higher-timeframe trend filter to skip the chop.
What do experienced traders know about donchian channel that beginners don't?+
Use a 55-day Donchian for entries and a 20-day Donchian for trailing stops — the original Turtle system. This gives you wider entries (filtering noise) and tighter exits (locking gains).

Related terms

Bollinger Bands

intermediate

A volatility indicator with three lines — a moving average and two bands set at standard deviations above and below it.

Keltner Channel

advanced

A volatility-based envelope around a moving average using ATR — similar to Bollinger Bands but smoother.

Breakout

intermediate

When price moves decisively through a significant support or resistance level, often triggering a new trend.

ATR (Average True Range)

intermediate

An indicator that measures average price volatility over a set period — used to size stops and position sizes.

Supertrend

intermediate

A trend-following indicator based on ATR that plots a single line above or below price — line below means uptrend, above means downtrend.

Golden Cross

beginner

When a short-term moving average (typically 50-day) crosses above a long-term moving average (typically 200-day) — a major bullish signal.

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