Covered call calculator

Enter your position details. Fetch the live stock price straight from our data feed, then input the option price to get the full breakdown across six analysis tabs.

Position inputs
Analysis

Fill in the fields on the left to see
metrics, charts, and trade analysis

How to Use the Covered Call Calculator

Enter your ticker symbol and click โ†“ Live Price to auto-fill the current stock price from Tradier. Then enter the option premium (use the bid price for a conservative estimate), strike price, expiration date, and number of contracts.

Optionally add Greeks (Delta, Theta, IV, Gamma, Vega) from your broker's options chain for deeper analysis including theta decay schedule, delta-based probability of assignment, and vega exposure.

The Scenarios tab shows your P&L at expiry across seven outcomes โ€” from a โˆ’20% stock drop to the strike price (max profit). The Theta Decay tab shows how the option's time value erodes over the trade duration, benefiting you as the seller.

All calculations use the same formulas documented in our methodology โ€” including annualized return = (premium / stock) ร— (365 / DTE) and downside protection = premium / stock.

Understanding the Key Metrics

Break-Even Price
The stock price at which you neither profit nor lose on the overall position at expiration. Formula: Stock price โˆ’ Premium received.
Annualized Return
Premium yield scaled to a 365-day year. Allows apples-to-apples comparison across different DTE options. Formula: (Premium / Stock) ร— (365 / DTE).
Return if Called
Your total return if the stock gets called away at the strike price. Includes premium + capital gain from current price to strike.
Downside Protection
The cushion the premium provides before you have a net loss. A 2.5% protection means the stock can drop 2.5% before you lose money.
Return on Capital
Max profit divided by capital at risk (stock cost โˆ’ premium). A more accurate measure than yield when comparing options at different strikes.
Theta Decay Rate
Percentage of the premium that decays each day. As the option seller, this accrues to your benefit. Accelerates in the final 21 DTE.

Frequently Asked Questions

How do I calculate the break-even price for a covered call?

Break-even price = Stock purchase price โˆ’ Option premium received. For example, if you own shares at $150 and sell a covered call for $3.50 premium, your break-even is $146.50.

What is the maximum profit on a covered call?

Maximum profit = Strike price โˆ’ Stock price + Premium received (per share). You earn maximum profit when the stock is at or above the strike price at expiration.

How do I calculate annualized return for a covered call?

Annualized return = (Premium / Stock price) ร— (365 / DTE). For example, a $3.50 premium on a $150 stock with 30 DTE = 2.33% premium yield ร— 12.17 = 28.4% annualized.

What delta should I target for a covered call?

Most covered call sellers target delta 0.20โ€“0.35. Delta 0.20โ€“0.25 is more conservative (lower probability of assignment, less premium), while delta 0.30โ€“0.40 captures more premium with higher assignment risk.

What is downside protection in a covered call?

Downside protection = Premium received / Stock price. It represents the percentage drop the stock can sustain before you have a net loss on the position. A $3.50 premium on a $150 stock provides 2.33% downside protection.

Should I use the bid price or mid price for the covered call premium?

The bid price is the conservative fill assumption used in the CCL Score formula and in this calculator by default. In liquid options, fills at or near the mid price are common โ€” use mid for a more realistic estimate.

How does theta decay benefit a covered call seller?

As the option seller, theta works in your favor. The option loses time value every day (theta ร— 100 per contract), accruing to your position as profit. This decay accelerates in the final 21 days before expiration.

Find Covered Call Candidates to Analyze

Use our live scanner to find the best covered call opportunities today, then plug them into this calculator for detailed analysis before placing the trade.

Best Covered Calls Today โ†’Full Screener โ†’IV Percentile Tool โ†’

This calculator is for educational and informational purposes only. All metrics are mathematical models based on your inputs. Nothing here constitutes financial or investment advice. Options trading involves substantial risk of loss. Live prices sourced from Tradier and may be delayed. Always verify data with your broker before trading.