Covered Call Calculator
Calculate your covered call returns including max profit, breakeven, annualized yield, and return scenarios for assigned and expired options.
Quick Answer
Selling a covered call on 100 shares at $150 with a $160 strike and $3.50 premium generates $350 in immediate income. Your breakeven drops to $146.50, and the maximum profit if assigned is $1,350 (premium + capital gain). If the option expires worthless, you keep the $350 premium and your shares.
1 contract (100 shares each)
Covered Call Analysis
Outcome Scenarios
| Scenario | Profit/Loss | Return | Annualized |
|---|---|---|---|
Option Expires Worthless Stock stays below strike; keep shares + premium | $350.00 | 2.33% | 28.39% |
Shares Called Away Stock exceeds strike; shares sold at strike + premium | $1,350.00 | 9.00% | 109.50% |
Position Details
About This Tool
The Covered Call Calculator helps options traders evaluate potential returns from selling covered calls against shares they already own. A covered call is one of the most popular and beginner-friendly options strategies, generating income from premium while providing a small buffer against stock price declines. This calculator models both the "assigned" and "expires worthless" scenarios, computes annualized yields, and shows your effective breakeven price after collecting premium.
What Is a Covered Call?
A covered call involves owning at least 100 shares of a stock and selling (writing) a call option against those shares. Each options contract represents 100 shares, so you need 100 shares per contract sold. The call option gives the buyer the right to purchase your shares at the strike price before expiration. In exchange for this obligation, you receive the option premium upfront. If the stock stays below the strike price, the option expires worthless and you keep both the premium and your shares. If the stock rises above the strike, your shares are "called away" (sold at the strike price), but you still keep the premium. The strategy caps your upside at the strike price but provides income and a small downside cushion.
When to Use Covered Calls
Covered calls work best in neutral-to-moderately-bullish market conditions. The ideal scenario is a stock that moves sideways or rises slightly — you collect premium and keep your shares. The strategy is less effective in strongly bullish markets (you miss out on gains above the strike) and does not provide meaningful protection in sharp sell-offs (the premium offsets only a small decline). Many income-focused investors sell covered calls monthly or weekly on their core holdings as a systematic income strategy. The "wheel strategy" combines selling cash-secured puts with covered calls for a complete income generation cycle.
Strike Price Selection
Choosing the right strike price is the most important decision in a covered call strategy. Out-of-the-money (OTM) strikes (above current price) offer lower premiums but more room for capital appreciation before shares are called away. At-the-money (ATM) strikes offer the highest time value premium but mean shares will likely be called if the stock moves at all. In-the-money (ITM) strikes provide the most downside protection but are very likely to result in assignment. Most covered call writers choose strikes 3-10% above the current price, balancing income generation with the desire to keep their shares. Delta can be used as a guide: a 0.30 delta call has roughly a 30% chance of being in-the-money at expiration.
Expiration Date Considerations
Shorter-dated options (weekly or 30-day) decay faster, meaning you capture time value more efficiently when measured on an annualized basis. However, shorter expirations require more frequent management (rolling, closing, or letting expire) and incur more commission costs. Longer-dated options (45-60 days) are popular among systematic sellers because they balance time decay with management frequency. Options decay accelerates in the final 30 days before expiration (theta decay), which is why many sellers target the 30-45 day range and close positions at 50% of max profit rather than waiting for full expiration.
Understanding Annualized Yield
The annualized yield shown in this calculator extrapolates the return over a single option period to a full year. For example, a 2.3% return over 30 days annualizes to approximately 28%. This metric is useful for comparing opportunities across different expirations and strike prices, but it assumes you can repeat the trade at the same return consistently throughout the year — which is unlikely in practice. Actual annual returns from covered call writing typically range from 6-15% in premium income, with total returns (including stock appreciation or depreciation) varying widely. Use annualized yield as a comparison tool, not a return expectation.
Risks of Covered Calls
While covered calls are considered a conservative options strategy, they carry important risks. Assignment risk means you may be forced to sell shares at the strike price, missing further upside. If the stock drops significantly, the premium provides only marginal protection — you bear the full downside of stock ownership minus the small premium. Dividend risk exists for stocks going ex-dividend before expiration, as early assignment becomes more likely when the option is in-the-money and the remaining time value is less than the dividend. Opportunity cost is often overlooked: if your shares are called away and the stock continues rising, you miss the gain and may need to buy back at a higher price. Tax implications also vary — premiums received, assignment proceeds, and holding periods all affect tax treatment.