Covered Call

What is a covered call?

A covered call is an options strategy that sells one call option against every 100 shares of stock the trader owns. The premium adds cash at entry and lowers the breakeven. In exchange, the shares’ upside is capped at the strike, because assignment sells them at that price. The position suits a neutral to moderately bullish view.

One standard call covers 100 shares. A buy-write opens the shares and call together. An overwrite adds the call to an existing holding. For an existing position, use the original stock cost to calculate the lifetime trade result and the current share price to compare choices from today. Keep those two reference points separate.

How to calculate covered call profit, loss, and breakeven

At expiration, the combined value per share is the smaller of the stock price and call strike. Subtract the stock reference price and add the call premium for P&L. Multiply by 100 for one standard covered call.

The example uses shares purchased at $48 and a short 52 call sold for $1.40. The premium is $140. Breakeven is $46.60, maximum profit is $540, and the loss at a zero stock price is $4,660.

At $45, the shares lose $300 and the call contributes $140, producing a $160 loss. At $57, the combined expiration profit is $540. The call delivers the shares at $52 and the opening premium remains part of the result.

Below $52, the covered call finishes $140 ahead of the same shares without the call. The two strategies produce the same $540 profit at $53.40. Compare that full payoff with the sale price you want to achieve.

How to choose covered call strikes and expiration

Start with the price at which you are prepared to sell the covered shares. Compare available strikes, the premium at each strike, and the time until expiration. A higher call strike preserves more stock appreciation; a lower strike collects more premium for the same expiration.

Use gamma exposure, chart levels, and options flow to build the price context. Then price the actual stock-and-call package. Writing two calls against 500 shares commits 200 shares to the call strikes and leaves 300 shares outside the overwrite. The options profit calculator compares the income, target sale value, and breakeven across stock prices for each candidate strike.

Managing a covered call and assignment

Before expiration, the stock contributes positive delta and the short call offsets part of it. The call’s time value, volatility, and price sensitivity determine the cost to close it. Assignment of an American-style call delivers its specified shares; review the ex-dividend date when planning that delivery.

To exit the entire position, close the call and sell the shares. To keep the shares and change the strike or expiration, close the existing call and open the replacement. Record both option cash flows in the total result. A roll creates a new short call, so retain its matching shares to keep it covered.

Risks and limitations of covered calls

• Size from the full stock exposure. The example’s $140 lowers breakeven to $46.60, but a fall to zero still loses $4,660.
• Choose a strike you are glad to sell at. The short call caps the gain at $540 above $52, and above $53.40 the shares alone would have earned more.
• Check the call’s extrinsic value before each ex-dividend date. An American-style call can be assigned early when little extrinsic value remains, which transfers the shares before the dividend is earned.
• Track implied volatility while the call is open. The short call has negative vega, so a rise in implied volatility raises the cost to close it even if the stock has not moved.
• Close the call when you sell the shares. Selling the shares while keeping the call leaves an uncovered short call.

Bottom line

Write a covered call only at a strike you are glad to sell at, because $52 is where the shares go and the $1.40 premium is your pay for agreeing to it. Weigh that income against the upside above $52 you give up.