Stop Loss vs Trailing Stop Loss: Which One Should You Use?
A complete comparison of fixed and trailing stop losses. Formulas, examples, when to use each, and the exit workflow professional traders use to protect gains.
Every trader knows they need a stop loss. Far fewer understand when to use a fixed stop versus a trailing stop loss. This guide compares both, shows real examples, and gives you a simple decision rule for every trade type.
Fixed Stop Loss — The Basics
A fixed stop is a static price. Enter long at $100 with a stop at $95 — that stop stays at $95 regardless of what price does. If price hits $95, you are out. Simple, predictable, and enforces a fixed dollar risk per trade.
Trailing Stop Loss — The Basics
A trailing stop moves with price, but only in your favour. Enter long at $100 with a 5% trailing stop → the stop starts at $95. Price runs to $110 → the stop trails up to $104.50. Price drops back to $104.49 → you are stopped out with profit. The stop never moves backwards.
Side-by-Side Comparison
| Feature | Fixed stop | Trailing stop |
|---|---|---|
| Max loss | Known upfront | Known upfront |
| Locks in profit? | Only if you manually move it | Automatically |
| Handles chop? | Better (fewer premature exits) | Worse (whipsaws) |
| Handles trends? | Requires manual management | Excellent (rides the move) |
| Emotional discipline | Easy — no decisions after entry | Easy — mechanical |
| Best for | Mean-reversion, range setups | Trend / momentum plays |
Worked Example: Trend Trade with Both
Long AAPL at $180, initial stop $174 (fixed, 3.3% risk). Target hidden. Price runs to $200.
With a fixed stop:
Stop stays at $174. If price falls back to $174 from $200, you give back ALL the unrealised profit and take the original -$6 loss. Not great.
With a 5% trailing stop:
Stop trails to $190 (5% below $200). If price reverses, you exit at $190 for +$10 per share. You caught the trend and protected the profit.
When to Use Each
- Fixed stop: swing trades in a range, mean-reversion setups, options positions, tight-stop scalps.
- Trailing stop: strong trend trades, breakout momentum, position trades, "let winners run" strategies.
- Hybrid: enter with a fixed stop, then convert to a trailing stop once price hits a certain profit threshold (e.g. +1R). Best of both worlds.
How to Set the Trailing Distance
- ATR-based: trail 2-3× the Average True Range. Adapts to volatility.
- Percentage: 3-5% for stocks, 1-2% for forex majors, 4-6% for crypto.
- Structure-based: trail below each new higher low. Manual but the tightest logical exit.
Common Mistakes
- No stop at all — the number-one cause of blown accounts.
- Trailing stop too tight — gets stopped out on normal noise. Trail wider than the average pullback.
- Moving the fixed stop the wrong way — never widen a stop against you.
- Mental stops — "I will exit if it hits $95". You will not. Set the order.
- Trailing before profit — activating a trailing stop while the trade is still at a loss is just a fixed stop with worse execution.
FAQs
Do brokers charge extra for trailing stops?
Not usually. Most major brokers support server-side trailing stops with no extra fee.
Do market makers hunt stops?
Around obvious round numbers, yes. Place stops slightly beyond the psychological level, not exactly on it.
Should I use a mental stop?
Only after 500+ live trades of proven discipline. Even then, most pros still place a hard stop.
Can I combine stops?
Yes — a common workflow: fixed stop until +1R profit, then convert to trailing.
Key Takeaways
- Every trade needs a stop. Non-negotiable.
- Fixed stop = simple + predictable. Best for ranges.
- Trailing stop = protects profit. Best for trends.
- Hybrid stops (fixed → trailing) work brilliantly on breakout trades.
- Trail wider than normal noise or you will be shaken out.
Use Bizzlytics trading tools to calculate risk, position sizing, and improve your decision-making. Plan every exit with the Risk Reward Calculator and size correctly with the Position Size Calculator.
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