Donchian Channels
Donchian channels were developed by Richard Donchian, a pioneer of mechanical
trend following systems. The two outer bands are plotted as the highest high and
lowest low for a set period, originally 20 days, with the optional middle band
calculated as the average of the two.
The system is only suitable for trending markets.
Go long when price
crosses the upper Donchian Channel (the four week high if 20 days is used).
Go short when price
crosses the lower Donchian Channel.
If trading futures, roll forward any open positions into the next
contract on the last day of the month preceding expiration.
The objective is to enter the trend on a breakout and to ride the trend for
as long as possible, avoiding shakeouts.
Curtis Faith in his book Way Of The Turtle
describes a variation of the Donchian system used by the legendary Turtle Traders.
Enter long when price crosses above the 20-Day upper Donchian Channel
and exit when price penetrates a 10-Day lower Donchian Channel.
Enter short when price crosses below the 20-Day lower Donchian Channel
and exit when price penetrates a 10-Day upper Donchian Channel.
Use the 25-Day/350-Day exponential moving average as a trend filter.
Go long only if the 25-Day EMA is above the 350-Day exponential moving
average and go short only where below the 350-Day EMA.
The system also uses ATR
trailing stops with a multiple of 2. Faith, however, demonstrates that
replacing the 10-Day Donchian Channel and ATR stops with a simple time-based
exit, where all trades are exited after 80 days (16 weeks), achieves similar
results — with no stop losses at all.
Example
Goldman Sachs displays the Turtle Trading settings for an up-trend, 20-day
upper and 10-day lower Donchian Channels, with 63-day exponential moving average
as an added trend filter.
![Goldman Sachs with Donchian Channels Goldman Sachs with Donchian Channels](//pubimage.360doc.com/wz/default.gif)
Mouse over chart captions to display trading signals.
- Go long [L] when price crosses above the upper Donchian Channel while above the 63-day exponential moving average
- Exit [X] when price crosses the lower Donchian Channel
- Go long [L] when price recovers above the upper Donchian Channel
- Exit [X] when price crosses below the lower channel.
The default setting for both Donchian Channels is 20 days. The middle line is optional.
See Indicator Panel for directions on
how to set up an indicator — and
Edit Indicator Settings to change the settings.
- The upper band is calculated as the highest high for the selected period.
- The lower band is calculated as the lowest low for the selected period.
- The selected period does not include the day on which the band is plotted
(otherwise the band would never be crossed). For example, the 20-Day
Donchian Channels for today are the highest high and lowest low for the
preceding 20 trading days.
- The middle line is calculated as (Upper Band + Lower Band) / 2.
Donchian Channels and the Aroon Oscillator give identical signals. Aroon
records 100% when price breaks the Donchian Channel. Readers should choose
whichever format they feel most comfortable with.
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