🗓️ 02112025 2345
📎
Core Concept: Buying a call option gives the right to profit from stock price increases with limited downside.
Why It Matters
Calls provide leveraged upside exposure for fraction of stock cost. Common first options trade but time decay can cause losses even if directionally correct.
When to Use
✅ Use long calls when:
- Bullish on stock, want leverage
 - Limited capital vs buying stock
 - Defined max loss requirement
 - Time horizon 45-90 days minimum
 
❌ Avoid when:
- IV rank >75% (expensive premium)
 - < 30 days to expiration (theta too high)
 - Small expected move (theta erodes faster)
 - Stock pays dividend soon (may drop)
 
Strategy Mechanics
Setup: Buy call at strike ≤ 5% OTM
Max profit: Unlimited (stock - strike - premium)
Max loss: Premium paid (100% loss if expires OTM)
Breakeven: Strike + premium paid
Ideal conditions: Rising stock, rising/stable IV, time on your side
Trade-offs
Pros: Capped risk, unlimited upside, leverage (10-20x stock move)
Cons: Time decay, total loss potential, need to be right on direction AND timing
Long calls demonstrate options_basics mechanics and rely on options_greeks delta/theta dynamics.
Quick Reference
Position Greeks:
- Delta: +0.30 to +0.70 (ATM best)
 - Gamma: Positive (accelerates with winning moves)
 - Theta: Negative (lose ~1-3% value/day near expiration)
 - Vega: Positive (benefit from IV rise)
 
Risk management:
- Max position size: 1-2% of account per trade
 - Stop loss: Exit at 50% premium loss
 - Profit target: 50-100% gain (2x premium)
 - Time stop: Close if < 21 DTE and not ITM
 
Strike selection:
- ATM (highest probability): 50% delta
 - Slightly OTM: 30-40% delta (cheaper, lower probability)
 - ITM: 70%+ delta (expensive, stock-like behavior)
 
Examples
Successful long call:
Stock: $100
Buy: 105 Call, 60 DTE, premium = $3.00
Cost: $300
Breakeven: $108
30 days later, stock at $112:
- Call now worth $8.50 (ITM + time value)
 - Profit: $550 (183% gain)
 - Stock gain: 12% vs option gain: 183%
 
Time decay scenario:
Stock: $100
Buy: 100 Call, 45 DTE, premium = $5.00
Stock stays at $100 (no movement):
- Day 15: Call worth $3.50 (30% loss)
 - Day 30: Call worth $2.00 (60% loss)
 - Expiration: Call worth $0 (100% loss)
 
Lesson: Correct direction not enough - need magnitude + timing.
IV crush example:
Before earnings:
- Stock: $100, IV: 80%
 - Buy 105 Call, 30 DTE, premium = $6.00
 
After earnings, stock moves to $107 (bullish):
- IV drops to 40%
 - Call worth $4.00 (33% loss despite profitable move)
 
Vega loss exceeded delta gain. Never buy options before earnings.
Comparison: Stock vs Call leverage:
Scenario: Stock moves from $100 to $115 (+15%)
Buying stock:
- Investment: $10,000 (100 shares)
 - Profit: $1,500 (15% return)
 
Buying calls:
- Investment: $3,000 (10 contracts, $3.00 each)
 - 105 Calls now worth ~$11.00 each
 - Profit: $8,000 (267% return)
 - Capital efficiency: 18x better
 
But if stock goes to $95:
- Stock loss: $500 (5% loss, can hold)
 - Call loss: $3,000 (100% loss, expired worthless) ```
 
References
- Options Playbook: Long Call
 - "Trading Options Greeks" by Dan Passarelli