You own 100 shares and simultaneously sell an OTM call option on them. The premium is immediate income but caps your upside at the strike.
When to use: You hold a stock long-term and expect no strong price appreciation in the next option period. Classic income strategy ("renting out your shares").
| Metric | Formula | Example (Stock $100, Call Strike $105, Premium $3) |
|---|---|---|
| Max. Profit | (Strike − Purchase Price + Premium) × 100 | +$800 |
| Max. Loss | −(Purchase Price − Premium) × 100 | −$9,700 (Stock → 0) |
| Breakeven | Purchase Price − Premium | $97 |
What really happens at assignment
Scenario: You own 100 AAPL at $170 (cost basis) and sold a call with strike $185. AAPL closes on expiration day at $190 — in the money (ITM) from the call's perspective.
- Saturday morning: Broker automatically removes your 100 AAPL shares from the account.
- Cash credit: 185 × 100 = $18,500 is credited to your account. The call premium (e.g. $3.00/share = $300) stays in your pocket on top.
- Effective profit per share: (185 − 170) + 3.00 = $18.00 per share = $1,800 total. You miss the move above $185 — that is the price of the strategy.
- What now? If you want to keep trading AAPL: sell a new CSP on AAPL (Wheel strategy back to start), or use the cash for another underlying.
👉 Further reading: Ch. 9.0 explains the Wheel strategy.
💡 In sTraderZ.com automatically recognised as "Covered Call" (📉 Bearish) when you hold 100 shares + 1 short call.