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Covered call: static return, return if called and break-even

Calculate the income, break-even price, downside protection, static return and return if called for selling a covered call on shares you own, with annualized figures.

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Results

Premium income

$150.00

Break-even price per share

$48.50

Return if called (stock at or above the strike)

13.40%

Maximum return: gains above the strike go to the call buyer
Downside protection
3.00%
Static return (stock unchanged at expiration)
3.09%
On the net cost of the position (stock price − premium)
Static return, annualized
25.1%
Return if called, annualized
108.7%
Maximum profit
$650.00

This calculator gives estimates for education and planning. It is not investment, tax or legal advice; for decisions about your own situation, talk to a qualified financial professional.

What a covered call is

A covered call means you own at least 100 shares of a stock and sell one call option on them. The buyer pays you a premium now. In exchange, you agree to sell your shares at the strike price if the buyer exercises the option, usually because the stock has risen above the strike by expiration. The shares “cover” the obligation, which is why the strategy is considered conservative compared with selling a call you cannot deliver.

The numbers this calculator gives

  • Premium income = premium per share × number of shares.
  • Break-even = stock price − premium − dividends. Below this price at expiration, the position loses money.
  • Downside protection = (premium + dividends) ÷ stock price. The stock can fall this much before you are worse off than at the start.
  • Static return = (premium + dividends) ÷ (stock price − premium), the return if the stock ends exactly where it started.
  • Return if called = (premium + dividends + strike − stock price) ÷ (stock price − premium), the return if the shares are sold at the strike. It is the best possible outcome.
  • Annualized figures multiply each return by 365 ÷ days to expiration, so you can compare options with different expirations.

Example

You own 100 shares at $50 and sell a 45-day call with a $55 strike for $1.50 a share:

  • Premium income: $150
  • Break-even: $48.50, with 3% downside protection
  • Static return: 1.50 ÷ 48.50 = 3.09%, or about 25.1% annualized
  • Return if called: (1.50 + 5) ÷ 48.50 = 13.40%, or about 108.7% annualized
  • Maximum profit: $650

The annualized figures look spectacular, but they assume you could repeat the same trade eight times a year with the same result, which rarely happens.

The trade-off

A covered call swaps upside for income. If the stock jumps to $70, you still sell at $55 and miss $15 a share of gains. If the stock falls to $40, the premium only softens the loss: you still lose $8.50 a share. The strategy works best on stocks you are happy to hold, in flat or gently rising markets.

Choosing the strike and expiration

  • Out-of-the-money strikes (above the stock price) leave room for gains but pay a smaller premium.
  • In-the-money strikes pay more and protect more, but you lose money on the shares if they are called away.
  • Short expirations of 30 to 45 days are popular because time value decays fastest in the last weeks.

Taxes and assignment

In the United States, premiums are generally taxed as short-term capital gains when the option expires or is closed. Some in-the-money calls can suspend the holding period of your shares. Early assignment can happen, especially just before an ex-dividend date. Check with a tax professional before using the strategy in a taxable account.

Frequently asked questions

What is a covered call?

An options strategy where you own at least 100 shares of a stock and sell one call option on them. You collect the premium now, in exchange for agreeing to sell the shares at the strike price if the stock is above it at expiration.

What is the difference between static return and return if called?

Static return assumes the stock price is unchanged at expiration: you keep the shares and the premium. Return if called assumes the stock is at or above the strike: you also earn the gain from your cost up to the strike, but nothing above it.

What are the risks of a covered call?

The premium cushions only a small drop. If the stock falls sharply, you still bear almost all of the loss. If it rises sharply, your gain is capped at the strike. Shares can also be called away early, especially just before a dividend.

How are covered calls taxed?

In the United States, the premium is generally a short-term capital gain when the option expires or is closed. If the shares are called away, the premium is added to the sale proceeds. Some in-the-money calls can affect the holding period of the stock, so check with a tax professional.

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Results are estimates provided for information purposes. They do not replace professional advice.

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