Covered calls explained for beginners
A covered call means you own at least 100 shares and sell someone the right to buy them from you at a set price. You get paid now. In return, you give up gains above that price, and you still carry almost all of the stock’s downside.
The two pieces
- The shares. You own 100 shares for each call you sell. This is what makes the call "covered": if the buyer exercises, you already have the shares to hand over.
- The short call. You sell to open one call option. The buyer pays you a premium. If the stock is above the strike at expiration, they will usually exercise and buy your shares at the strike.
You keep the premium no matter what happens next.
The formulas
All of these are per contract (100 shares) and before fees. "Your share price" means what you paid for the shares.
Worked example
Example numbers
You own 100 shares that you bought at $40. You sell 1 call with a $45 strike for $1.50.
The premium is $1.50 ÷ $40 = 3.75% of what you paid for the shares, for this one expiration.
Four outcomes at expiration
| Stock at expiration | What happens | Shares P/L | Total with $150 premium |
|---|---|---|---|
| $35 | Call expires worthless, you keep the shares | −$500 | −$350 |
| $38.50 | Call expires worthless | −$150 | $0 |
| $43 | Call expires worthless, you keep the shares | +$300 | +$450 |
| $50 | Shares likely called away at $45 | +$500 (sold at $45) | +$650 |
Look at the $50 row. If you had not sold the call, your shares would be up $1,000. With the covered call you made $650. The $500 of gains above $45 went to the call buyer. That is the trade-off you accept when you sell the call.
Look at the $35 row too. The premium softened the loss from $500 to $350, but it did not prevent it. Run your own numbers in the covered call calculator.
What "called away" means
If the call is exercised, you are assigned. Your broker sells your 100 shares at the strike price and puts the cash in your account. You do not choose the timing. Options that finish in the money at expiration are generally exercised automatically, and most US stock options are American-style, so the buyer can exercise early too. Early exercise is more likely when the call is deep in the money or right before the stock pays a dividend.
If you want to keep the shares no matter what, a covered call may not match that goal, because you can lose them at the strike.
Reading a covered call on a ticket
- Action: it should say sell to open a call. "Sell to close" would mean closing a call you already own, which is a different trade.
- Quantity: 1 contract per 100 shares you own. Selling more calls than your shares cover leaves part of the position uncovered, which has much larger risk.
- Strike: the price you would sell your shares at.
- Expiration: how long you are tied to that obligation.
- Premium / limit price: per share. Multiply by 100 to get dollars.
Plain-English check: "I am paid $150 now. If the stock is above $45 at expiration, I sell my 100 shares at $45. If it falls, I still own the shares and take the loss, minus $150."
Common beginner mix-ups
- "The premium is free money." It is payment for giving up upside above the strike. It is not protection from a big drop.
- Choosing a strike below your cost. If the strike plus the premium is less than what you paid for the shares, being called away locks in a loss.
- Thinking you can only lose the premium. As the call seller, the premium is your gain. Your losses come from the shares.
- Forgetting the obligation lasts until expiration. To get out early you can buy to close the call, which costs whatever the call is worth at that time, possibly more than you received.
Buying back or rolling
Before expiration, you can buy the call back (buy to close). If the stock has dropped, the call is usually cheaper and you keep the difference. If the stock has risen, buying it back can cost more than the premium you received. Some traders "roll" by buying back the current call and selling a new one at a different strike or date. Each roll is a new trade with its own math, so it is worth checking the numbers each time.
FAQ
What is a covered call in simple terms?
You own 100 shares and sell a call option on them. You are paid a premium now, and you agree to sell the shares at the strike price if the option is exercised.
What is the max profit on a covered call?
The strike minus what you paid for the shares, plus the premium, times 100. With shares bought at $40, a $45 strike and a $1.50 premium, that is $650 per contract before fees.
What is the breakeven on a covered call?
What you paid per share minus the premium per share. In the example, $40 − $1.50 = $38.50.
Can you lose money on a covered call?
Yes. If the stock falls below your breakeven you lose money, and the loss can be large if the stock falls a lot. The premium only offsets part of a drop.
What happens if my covered call expires in the money?
The call is generally exercised and your shares are sold at the strike price. You keep the premium and the cash from the sale.
Educational only. This page explains order mechanics with example numbers. It is not investment advice, not a recommendation to buy or sell anything, and not a broker. Check your own broker’s rules, fees and assignment terms before you trade.