1 The Story
The man who made trend following a system
Richard Davoud Donchian (1905–1993) was an American commodities trader and the pioneer of the managed-futures industry. He began trading in the 1930s, served as a cryptanalyst in World War II, and in 1949 launched Futures, Inc. — one of the first publicly managed futures funds.1
He developed the Donchian channel breakout system and a set of trend-following 'guides,' aiming, in his own words, not to forecast prices but to provide a simple way to get aboard important trends.1
2 The Big Idea
Don't predict — follow
Catch the big trends with simple rules, and cut the losers fast.
Donchian's insight was humility: you can't reliably forecast prices, but you can build mechanical rules that get you aboard a real trend and out of a failing one. You don't need to be right often — you need to ride the winners and keep the losers small.1
3 The Method
Channels, breakouts, and rules
The Donchian channel
Track the highest high and lowest low of the last N periods. A push beyond that channel signals a new trend worth following.
The 4-week rule
A mechanical classic: buy on a new 4-week high, sell or reverse on a new 4-week low. Simple, robust, hard to argue with.
The 5/20 system
A moving-average crossover (5-day vs. 20-day) — one of the first systematic trend filters.
Cut losses, let winners run
The discipline that makes trend following actually work: small, fast losses; big, patient winners.
4 Try It Today
Test the idea for yourself
A no-risk exercise
On a trending chart, draw the highest high and lowest low of the last 20 bars — that's a Donchian channel. Mark where price broke above the upper line, and imagine an exit if it later broke the lower line. Notice how a simple, mechanical rule would have kept you aboard the trend without a single forecast.
5 The Books & Their Big Ideas
What they wrote — and what to take from it
6 Watch & Read
Go deeper
- CONCEPTTrends & Market Structure
- PLAYBOOKThe Donchian Channel Breakout — the full process.
- READ"Richard Donchian" & "Donchian channel" — Wikipedia.1
§ Sources
- "Richard Donchian," Wikipedia — en.wikipedia.org/wiki/Richard_Donchian
- "Donchian channel," Wikipedia — en.wikipedia.org/wiki/Donchian_channel