If System 1 (20-day breakout) is a caffeinated day trader, System 2 (55-day breakout) is a wise old owl. It trades less often. It filters out the noise. It is designed for people who have jobs, families, or simply hate getting whipsawed.
The philosophy of System 2 is: "I am willing to be late to the party, as long as I can be sure it's a real party." You give up the first chunk of the trend (the entry is later) to avoid the false starts that kill System 1 traders.
- System 2 enters on a 55-day breakout, accepting late entries to filter noise and suit traders who can’t babysit screens.
- Stops sit 2× ATR from entry; exits use the 20-day low/high, so you’ll give back profit to stay in longer trends.
- No filter rule here—take every 55-day signal because they’re rare and often mark the year’s best moves.
- Expect boredom and fewer trades; pyramiding can be heavier than System 1 because win rate is higher.
The Core Rules (System 2)
- Entry Rule: Buy when price exceeds the High of the preceding 55 days. Sell Short when price drops below the Low of the preceding 55 days.
- Stop Loss: 2 × ATR (N) from the entry price. (Standard Turtle risk).
- Exit Rule: Exit Long when price touches the 20-day Low. Exit Short when price touches the 20-day High.
The Trade-off: Late Entry, Wide Exit
Let's be honest about the pain points of System 2.
By the time price breaks a 55-day high, the trend might already be up 15% or 20% from the bottom. Your brain will scream: "I missed it! It's too expensive!" Reframe: You didn't miss it. You let the System 1 traders take the risk of the early reversal. You are paying a premium for a higher probability trend.
The exit is the 20-day low. In a strong trend, the 20-day low might be far below the current price. You might ride a stock from $100 to $200, then watch it fall to $170 before the 20-day exit triggers. Giving back $30 of profit feels terrible. But it is necessary to stay in the trend for the move to $300 or $400.
What Markets Fit System 2?
System 2 relies on "fat tails"—trends that go on for months or years. It does not work well in mean-reverting chop.
- Commodities: Futures like Oil, Copper, or Wheat. Supply shocks take a long time to resolve. System 2 eats these up.
- Crypto: Bitcoin bull runs are historic. System 2 keeps you in through the 30% corrections that shake out weaker hands.
- Currencies: Interest rate divergence trends (e.g., USD/JPY) can last for years.
System 2 vs. The "Filter Rule"
Unlike System 1, System 2 has no filter. You take every single 55-day breakout. Why? Because 55-day breakouts are rare. If a market hits a 55-day high, something significant has changed. If you skip one, you are almost guaranteed to miss the year's best trade.
Expectations: The Boredom is Real
You might go 3 months without a trade. You might check the dashboard every day for 12 weeks and see nothing but "Hold" or "Flat." (See Article 013).
This is why System 2 is perfect for part-time traders.
- - System 1 requires checking the market daily, urgently.
- - System 2 allows you to check the market daily, calmly.
If you miss a System 2 entry by 4 hours, it rarely matters. If you miss a System 1 entry by 4 hours, you might miss the move.
Pyramiding in System 2
Because System 2 entries are safer (higher win rate), Aggressive Turtles often pyramid more heavily here. Standard Pyramid Rule:
- - Enter 1 Unit at Breakout.
- - Enter 1 Unit at Breakout + 0.5N.
- - Enter 1 Unit at Breakout + 1.0N.
- - Move stops up aggressively.
This allows you to build a massive position in a safe trend, while keeping your initial risk small.
Final Verdict:
If you want excitement, trade System 1.
If you want wealth and a lower ulcer rate, trade System 2.
Compare the signals live on the Dashboard. Look for the "55D" tag.
A quick, realistic walkthrough (the kind your brain actually needs)
Let’s do a simple play-by-play, because most “strategy explanations” are missing the only part that matters: what you do on a normal Tuesday. Picture this: you scan your list once a day. One market is breaking above its recent highs. Your job is not to guess the top or get poetic. Your job is to follow the steps you already decided on a calm day. If you want the full “start here” path, the hub is Articles.
- Check the level (the breakout point) and confirm it’s a real “new high” for your chosen window.
- Calculate your risk using ATR. If volatility is huge, your position will be smaller. That’s not a bug.
- Place the entry and the stop. Put the stop in the system, not in your imagination.
- After entry, stop watching every tick. If you must stare at something, stare at your rules.
- Exit by rule: either a reversal level hits, or your stop hits. Your mood is not on the list.
Sometimes you’ll get stopped out quickly. That’s normal. The system is built around the idea that a few big trends pay for a bunch of small “nope” trades.
Risk rules that keep you in the game
Here’s the unglamorous truth: most people don’t “lose to the market.” They lose to their own sizing. They take a normal strategy and turn it into a stress test by risking too much when they feel confident and too little when they feel scared. Turtle-style risk rules try to remove that swingy behavior.
- Pick a fixed risk per trade (a small percent of your account). Write it down.
- Use ATR for stop distance so you’re not placing stops inside normal noise.
- Size from risk: wider stop → smaller position; tighter stop → larger position.
- Cap your total exposure so one theme (or one sector) can’t dominate your portfolio.
If this feels like “too much math,” good news: it’s simple math. And it’s worth it. Start with ATR sizing.
The boredom problem (and how to stop sabotaging yourself)
A lot of traders don’t have a strategy problem — they have a boredom problem. Trend following is often quiet. That silence tricks you into “improving” the system with extra trades. That’s how people turn a good strategy into a messy hobby.
- Run scans on a schedule (daily or weekly). Outside that time, you’re done.
- Use alerts instead of constant chart-watching.
- Journal rule-breaking as a separate “expense.” It’s usually larger than commissions.
- If you need action, do something else: exercise, build tools, read. Not another trade.
A simple checklist you can follow without thinking
- Scan your universe for breakouts (20D/55D levels).
- Confirm liquidity/cost constraints for the instrument you trade.
- Compute ATR and position size from your risk rule.
- Place entry + stop. If you can’t place a stop, you can’t place the trade.
- Log it. Future-you is your compliance officer.
- Review every trade: did you follow rules, yes/no?
- Update the watchlist/universe only on the scheduled day.
- Check concentration: are you accidentally loaded up on one theme?
- Write one improvement for process (not “I wish price went up more”).
Quick FAQ (because your brain will ask these anyway)
- Do I need a ton of indicators? Nope. Price levels + risk rules carry the system. Extra indicators mostly add extra ways to second-guess yourself.
- Is a low win rate “bad”? Not for trend following. Many versions win less than half the time and still do fine because the winners can be much larger than the losers.
- Do I need to watch charts all day? Not if you trade daily rules. You can run a boring schedule and let the rules do the heavy lifting. The Dashboard is literally built for quick scanning.
- What should I read next? Start with Turtle Trading Explained → Donchian Channels → ATR for Turtle Trading → System 1 vs System 2. Or just scroll to the Further reading section below.
Share-friendly summary (steal this for socials)
Turtle Trading is rules-based trend following: buy breakouts, size by volatility (ATR), and exit by rules. It’s boring on purpose — and that’s the point. If you want the clean entry/exit levels, read Donchian channels.
Common mistakes (and the exact fix for each)
Most “strategy failures” are just process failures in a trench coat. Here are the usual suspects, plus what to do instead.
- Mistake: Moving stops because you “feel” it’s about to bounce. Fix: Decide stops before entry and treat them like a contract you signed with your calmer self.
- Mistake: Taking every signal in the same sector/theme. Fix: cap exposure and diversify; correlation loves to ambush people.
- Mistake: Changing parameters after a losing streak. Fix: lock rules for a fixed evaluation window (e.g. 8–12 weeks).
- Mistake: Ignoring costs. Fix: assume worse fills on breakouts and test with conservative assumptions.
- Mistake: Overtrading because you’re bored. Fix: schedule scans; outside scan time, do literally anything else.
A simple position sizing example (numbers make this click)
Say your account is $10,000 and you decide to risk 1% per trade. That’s $100. You measure ATR, set a stop distance (often around 2×ATR), and then you size the position so a stop-out loses about $100. That’s how you make each trade equally survivable, even when markets have different volatility.
Example: if your stop distance is $4, you can take roughly 25 shares ($100 / $4). If the stop distance is $10, you take 10 shares. You didn’t “get scared.” The market just got wilder, so you got smaller. That’s the whole philosophy in one sentence.
Want the deep version? ATR for Turtle Trading is your friend.