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The Importance of Stop-Losses

Why Must You Use Stop-Losses?

Protect capital
  • Small losses are easy to recover
  • Big losses can be fatal
  • As long as you keep the mountain green, you won’t run out of firewood
The asymmetry between losses and recovery
LossReturn Needed to Break Even
-10%+11.1%
-20%+25%
-30%+42.9%
-50%+100%
-70%+233%
-90%+900%

Psychological Significance

  • Reduce emotional interference
  • Maintain objective judgment
  • Avoid the “hold and hope” mindset
  • Maintain trading discipline

Stop-Loss Methods

1. Percentage Stop-Loss

How to set it: stop out when the loss reaches a fixed percentage of principal Example:
  • Principal: 10,000
  • Stop-loss percentage: 2%
  • Stop-loss amount: 200
  • Suitable for: all trading instruments
Pros and cons:
  • ✅ Simple and easy to execute
  • ✅ Risk is controllable
  • ❌ Does not account for volatility
  • ❌ May stop out too early

2. Technical Stop-Loss

Support-level stop
  • Place it below an important support level
  • Distance: 2–3% below support
  • Basis: technical analysis
Moving-average stop
  • Stop out when price breaks below a key moving average
  • Common: 20-day, 50-day MA
  • Suitable for: trend trading
ATR stop (Average True Range)
Stop level = Entry price - (ATR × multiple)
The multiple is usually 1.5–3

3. Time Stop-Loss

Principle: limit holding time; if the trade doesn’t play out by the deadline, stop out Use cases:
  • event-driven trading
  • short-term trading
  • avoid tying up capital for too long

4. Combined Stop-Loss

Combine multiple methods and take the strictest stop level:
  1. Technical stop: -3%
  2. Fixed-percentage stop: -2%
  3. Final stop: -2% (take the smaller value)

The Art of Take-Profit

Why Is Taking Profit So Hard?

Psychological factors:
  • Greed: always want more
  • Regret: feel bad for selling too early
  • Fear: fear missing a big move
Technical difficulties:
  • Tops are hard to predict
  • Trends may continue
  • Taking profit too early limits profits

Take-Profit Methods

1. Target Take-Profit

Fixed return target
  • Set: e.g., take profit at +20%
  • Pros: clear target
  • Cons: may miss a big move
Risk–reward ratio
  • Set: e.g., 1:3 (risk 1 to make 3)
  • Example: stop 200, target profit 600
  • Suitable for: swing trading

2. Trailing Take-Profit

Trailing stop
Initial stop: Entry price -5%
After price rises 10%: move stop up to entry price
After price rises 20%: move stop up to +10%
Always keep a fixed distance from the highest price
Percent drawdown take-profit
  • Take profit when price pulls back X% from the highest point
  • Common: 10%–20% pullback
  • Protect unrealized gains while allowing room

3. Scaling-Out Take-Profit

Pyramid take-profit
Profit +10%: sell 1/3
Profit +20%: sell 1/3
Profit +30%: sell 1/3
Core position method
  • Keep 30% as a core position
  • Scale out the rest
  • Balance realized gains and upside participation

4. Technical Take-Profit

Resistance-level take-profit
  • prior highs
  • round-number levels
  • Fibonacci levels
Pattern-based take-profit
  • top patterns appear
  • abnormal volume
  • indicator divergence

Principles for Setting Stops and Targets

Reasonableness

  1. Consider volatility: more volatile instruments need wider stops
  2. Match the timeframe: wider for long-term, tighter for short-term
  3. Align with position size: stricter for large positions; smaller positions can allow more room

Consistency

  • Set before the trade; don’t change casually
  • Execute strictly; don’t let emotions interfere
  • Record and reflect; continuously optimize

Flexibility

  • Adjust to market conditions
  • Major news can be exceptions
  • But you need explicit rules

Common Mistakes

Stop-Loss Mistakes

  1. No stop-loss: the biggest mistake
  2. Stops too tight: triggered too often
  3. Moving the stop away: disguised refusal to stop out
  4. “Mental stops”: weak execution

Take-Profit Mistakes

  1. No take-profit plan: never take money off the table
  2. Taking profit too early: small wins and out
  3. Greedily never taking profit: giving back gains
  4. Emotional decisions: chasing highs and selling lows

Real-World Examples

Case 1: The value of strict stop-losses

Entry: 100
Stop: 95 (-5%)
Actual move: drops to 94, then rebounds to 110

Result: stopped out and missed the rebound
Lesson: stops may miss opportunities, but they protect capital
Better approach: after stopping out, re-enter after stabilization

Case 2: Using trailing take-profit

Entry: 50
Initial stop: 47.5 (-5%)
Price rises to 60: move stop up to 55
Price rises to 65: move stop up to 58.5
Exit at 58.5 on the trailing stop

Result: locked in 17% profit
Takeaway: not the top, but a solid locked-in gain

Tools and Tips

Automation Tools

  • Stop orders: trigger automatically at preset prices
  • OCO orders: one triggers and the other is canceled automatically
  • Alerts: price alerts to support decision-making

Psychological Training

  1. Accept losses: stop-loss is a cost, not a failure
  2. Overcome greed: taking profit is also a win
  3. Maintain discipline: rules beat feelings
  4. Think long term: one trade doesn’t matter much

Summary

Stop-loss and take-profit are the lifeline of trading:
  • Stop-loss: control risk and protect capital
  • Take-profit: lock in gains and bank profits
  • Balance: find the balance between protection and opportunity
  • Discipline: execution matters more than strategy
Remember: there is no perfect stop-loss/take-profit strategy—only the method that fits you best. Keep learning, summarizing, and optimizing to form your own trading system.
“Cut losses short and let profits run” — the golden rule of trading