Covered Call Calculator
Calculate premium yield, downside protection, and profit/loss for covered calls. Real-time data with interactive payoff diagrams.
What Is a Covered Call?
A covered call is an options income strategy where you own 100 shares of a stock and sell a call option against those shares. The call gives the buyer the right to purchase your shares at the strike price, and in return you collect a premium. It is the second core leg of the wheel strategy and one of the most widely used income strategies in options trading.
If the stock stays below the strike at expiration, the call expires worthless and you keep both the shares and the premium. If the stock rises above the strike, your shares get “called away” — you sell them at the strike price and keep the premium on top.
Two Return Scenarios
The static return (also called premium yield) is what you earn if the stock stays flat — just the premium divided by the share price. The called-away return (also called if-called return) adds any capital gain from selling the shares at a strike above your cost basis. For example, if you bought shares at $100, sold a $105 call for $2.00, your static return is 2% and your called-away return is 7% (2% premium + 5% capital gain). Annualizing these returns over the contract duration gives you a meaningful comparison across expirations.
Key Considerations
The tradeoff with covered calls is capped upside: if the stock surges past your strike, you miss out on those gains. Your breakeven is the share purchase price minus the premium collected. Most wheel traders sell calls at 0.25-0.35 delta, targeting 30-45 day expirations, which balances premium income with a reasonable probability of keeping the shares. If your shares do get called away, you cycle back to selling cash-secured puts — completing the wheel.
If Called Away: Completing the Wheel
When the stock rises above your call strike at expiration, your shares are “called away” — sold at the strike price. Your total return is the capital gain (strike minus cost basis) plus all premiums collected from both the original CSP and subsequent covered calls. This is the ideal exit for wheel traders.
After being called away, the cycle restarts. You now have cash available to sell new cash-secured puts. Many traders immediately sell a new CSP on the same stock if they still like the thesis, or rotate to a different ticker with better premium opportunities.
When to Roll a Covered Call
Rolling means buying back your current short call and simultaneously selling a new one at a later expiration (and optionally different strike). Consider rolling when:
- The call is approaching expiration ITM but you want to keep shares
- You can roll out and up for a net credit (you collect more premium)
- IV has dropped significantly — close cheap, re-sell when IV rises
- The stock has moved well past your strike (roll up to capture more upside)
Use our Roll Calculator to compare your current position vs. a proposed roll before executing.
Dividend Warning
If the stock pays a dividend and your short call is in-the-money near the ex-dividend date, you face early assignment risk. The call buyer may exercise early to capture the dividend. Check ex-dividend dates before selling calls on dividend-paying stocks — especially when remaining time value is less than the dividend amount. Our earnings calendar tracks reporting dates but always verify ex-div separately with your broker.
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Frequently Asked Questions
Should I sell covered calls above or below my cost basis?
Always sell calls at or above your cost basis if your goal is to avoid selling shares at a loss. If the stock has dropped well below your cost basis, selling calls at lower strikes generates more premium but risks locking in a loss if the shares are called away. Many wheel traders prefer to wait for a recovery rather than sell calls below cost basis.
What happens when my covered call gets assigned?
Your 100 shares are sold at the strike price. You keep all premium collected. If you're running the wheel strategy, you then cycle back to selling cash-secured puts to potentially re-acquire shares at a lower price.
How do dividends affect covered calls?
If your stock goes ex-dividend while you have a short call, there's a risk of early assignment — especially if the call is in-the-money and the remaining time value is less than the dividend amount. Check ex-dividend dates before selling calls.
Options involve risk and are not suitable for all investors. All calculations are estimates — actual results will vary. Not financial advice. Full disclosure