Lesson 11: Common Mistakes (And How to Not Donate Money)
Promise: Recognize the failure modes before they happen.
The Reality
Most "option losses" aren't bad luck. They're preventable errors:
Most "option losses" are execution, misunderstanding, or risk sizing. Not bad luck.
Mistake #1: Payoff vs P&L Confusion
Fix
Always think in terms of P&L, not payoff. Know your breakeven before entering.
→ Review: Lesson 3: Payoff vs P&L
Mistake #2: Trading Wide Spreads
Fix
Always check the spread before trading. Use limit orders on wide markets.
→ Review: Lesson 8: Execution on Orderbook
Mistake #3: Ignoring Expiry Time and Settlement
Fix
Close positions well before expiry if you need to exit. Know the TWAP mechanics.
→ Review: Lesson 9: Expiry & Settlement
Mistake #4: Selling Options Without Margin Buffer
How to Avoid This
- Model worst-case scenarios before selling
- Keep significant margin buffer (2×+ recommended)
- Understand that near-expiry shorts are especially dangerous (high gamma)
→ Review: Lesson 10: Margining Basics
Mistake #5: Confusing IV with Direction
Fix
Separate your vol view from your directional view. If you're buying options, you're implicitly long IV. If IV drops, you lose even if direction was correct.
→ Review: Lesson 5: Implied Volatility
Mistake #6: Ignoring Gamma Near Expiry
Fix
Respect gamma, especially near expiry. Short-dated ATM options are the most "twitchy."
→ Review: Lesson 6: Greeks 101
Top 6 Mistakes Summary
Pre-Trade Checklist
Before every trade, ask yourself:
Pre-Trade Checklist
Run through this before every position
- What's my max loss? Can I state it in one number?
- What's the spread? Is it acceptable?
- When does it expire? Have I accounted for 08:00 UTC?
- What's my breakeven? (If directional)
- Am I paying for IV? Is vol elevated?
- Do I have enough margin buffer? (If selling)
💡 Tip: Try answering each question yourself before revealing the answer.
Congratulations!
You've completed the Options Explainers (0→1) course.
What You Now Understand
- What options are and how to read them
- Payoff vs P&L (the #1 thing most people miss)
- Why options have time value and how IV affects price
- The four Greeks and what they measure
- How to pick strategies based on direction and vol views
- Execution costs and orderbook mechanics
- Hypercall-specific settlement and margin rules
- The mistakes to avoid
Next Steps
- Place a small risk-defined trade (long option or spread)
- Read the deeper docs: Standard Margin, Settlement
- Explore the API for programmatic trading
See Also
Navigation: ← Lesson 10: Margining Basics | Course Home →