Turtle Trading Strategy: The Classic Breakout System Made Simple (Donchian Channels + Trend Filter)

Curated by Andrew Lockwood, London Futures Exchange Veteran (35+ Years Exp)T

he Turtle Trading strategy is one of the most famous rule-based systems ever taught. It is simple, structured, and built around one core idea: catch breakouts, control risk, and let the market prove you right or wrong.

In this lesson, we strip Turtle Trading back to a repeatable approach you can backtest. I will give you clear entry rules, practical filters, and a few sensible exit options you can choose from based on your personality.

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The Turtle Trading Story (and the real lesson most traders miss)

Back in the 1980s, two legendary traders ran an experiment to prove a point: trading success can be taught.

They trained a group of complete beginners on a simple rules-based breakout system. Those trainees became known as “the Turtles”.

The big takeaway is not the exact rules. It is this:

• A good trading system does not need to be complicated
  
• The hard part is sticking to the rules when the market gets messy
  
• Discipline beats “the perfect strategy” almost every time
  

That is exactly why Turtle Trading is still worth learning.

What Turtle Trading Actually Is

Turtle Trading is a breakout strategy built around Donchian Channels.

A Donchian Channel simply marks:

• The highest high over a lookback period
  
• The lowest low over a lookback period
  

When price breaks out of the channel, you take the trade in the breakout direction, with a clear stop and predefined risk.

The Only Tools You Need (for this version)

For this Turtle Trading approach, you only need:

1. Donchian Channel (20-bar) for entries
   
2. Donchian Channel (10-bar) for stop placement
   
3. A higher timeframe 50 EMA as a trend filter (optional, but strongly recommended)
   
4. Major support and resistance levels as a simple “roadblock” filter
   

That is it. Clean charts. Clear rules.

Setting Up Your Chart (Donchian Channel Settings)

Most platforms have Donchian Channels built in. On TradingView:

1. Open Indicators
   
2. Search Donchian Channels
   
3. Add it to the chart
   
4. Set the length to 20 for your entry channel
   

For the stop logic, you can either:

• Add a second Donchian Channel set to 10, or
  
• Manually look back 10 bars and mark the relevant high/low
  

Step 1: Identify the Higher Timeframe Trend (Simple Filter)

Turtle Trading can be traded “pure rules-only”, but for short-term trading it often improves if you align with the broader trend.

A simple filter:

• If you trade entries on 5m / 15m / 1H, use the 4H as your higher timeframe
  
• If you trade entries on 4H, use the Daily
  
• If you trade entries on Daily, use the Weekly
  

Now apply a 50 EMA on the higher timeframe:

• Only look for buys when price is above the 50 EMA
  
• Only look for sells when price is below the 50 EMA
  

This keeps you trading breakouts in the direction that has the best odds of follow-through.

Step 2: Mark “Roadblocks” (Major Support and Resistance)

Before taking a breakout, quickly check:

• Are you buying directly into a major resistance level?
  
• Are you selling directly into a major support level?
  

If your first realistic target cannot reach at least 1:1 because a major level is in the way, skip the trade.

Tip: mark weekly and daily levels on the weekend so you are not guessing in the moment.

Step 3: The Entry Rules (Short-Term Turtle Breakouts)

There are two versions of Turtle Trading. We will start with the short-term breakout rules.

Short-term bullish breakout (buy setup)

1. Plot a 20-bar Donchian Channel
   
2. Identify the highest high of the last 20 bars
   
3. Buy when price breaks above that 20-bar high
   
4. Place the stop immediately (see next section)
   

Short-term bearish breakout (sell setup)

1. Plot a 20-bar Donchian Channel
   
2. Identify the lowest low of the last 20 bars
   
3. Sell when price breaks below that 20-bar low
   
4. Place the stop immediately (see next section)
   

This is the core Turtle Trading entry logic.

Stop Placement (10-bar rule)

Once you enter, your stop is rules-based:

• For a buy, look back 10 bars and find the lowest low
  
  • Your stop goes below that level
    
• For a sell, look back 10 bars and find the highest high
  
  • Your stop goes above that level
    

Now you have:

• Entry
  
• Stop
  
• Defined risk
  

From there you can position-size in a consistent way (same account risk per trade).

Profit Targets (3 simple options)

There is no single “best” exit. Choose the approach you can actually follow.

Option 1: Fixed risk-to-reward target

• Take the full exit at 1:1, 2:1, or 3:1
  
• Minimum suggestion for a breakout strategy: 1:1
  
• Make sure targets are not blocked by major support/resistance
  

Option 2: Scale out (structured profit taking)

Example:

• Take 1/3 off at 1:1, move stop to breakeven
  
• Take 1/3 off at 2:1
  
• Take final 1/3 off at 3:1
  

This gives you regular wins while still leaving room for a larger move.

Option 3: Partial exit + trailing stop (trend-friendly)

Example:

• Exit half at 1:1
  
• Move stop to breakeven
  
• Trail the remaining half using the high/low of the last 5 bars
  

This is powerful when the trend runs, and it keeps you in the move longer.

The Long-Term Turtle Version (bigger trends, wider channel)

The longer-term version uses a wider channel and a wider stop lookback.

A common structure is:

• Entry channel: 50 to 55 bars
  
• Stop lookback: 20 bars
  

Same idea, just adapted for swing trades and longer trend moves.

Full Example Breakdown (How It Plays Out)

1. Check the higher timeframe trend using the 50 EMA
   
2. Mark major support and resistance “roadblocks”
   
3. Plot the 20-bar Donchian Channel on your entry chart
   
4. Wait for the breakout and take the trade in the breakout direction
   
5. Set the stop using the 10-bar high/low rule
   
6. Choose your exit method (fixed RR, scale out, or trail)
   
7. Log the trade and backtest the rules over a meaningful sample
   

That is Turtle Trading in a clean, structured format.

Final Tips + Backtesting Advice

There is no magic strategy. What matters is whether you can apply a simple method consistently.

What I encourage you to do:

• Backtest the rules as written
  
• If you change anything (timeframes, filters, exit method), change it and backtest again
  
• Do not “adjust rules live” just to justify staying in a trade
  

The edge is not the indicator. It is your ability to follow a rules-based approach with discipline.

Download the Turtle Trading PDF Guide

Want the rules in a printable checklist format?

Ready to put these insights into practice? 

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Important Educational Disclaimer

All the examples shown are for educational purposes only. They are not investment advice or an inducement to trade. Funded Trading Plus programs operate in a simulated environment using virtual funds; there is no real capital at play, and payouts (where applicable) are calculated from simulated profits in line with the program terms.

Source notes (history references): The Turtle experiment is widely documented as being run by Richard Dennis and William Eckhardt in the early 1980s, with reported strong profitability over subsequent years. investopedia.com