Covered Call Strategy: Meaning, How It Works, Example & Payoff

What if the shares already lying in your portfolio could help you earn some additional income?

Suppose you own shares of a company and plan to continue holding them. However, you do not expect the stock to rise sharply over the next few weeks. In such a situation, you can sell a call option on those shares and receive an option premium.

This combination of owning a stock and selling a call option on it is known as a covered call strategy.

The premium can improve your return when the stock remains flat or rises moderately. But it is not free income. In return for receiving the premium, you agree to limit your profit if the stock rises above a predetermined price.

In simple terms, a covered call allows you to convert some of the stock’s possible future upside into premium income today.

What Is a Covered Call and How Does It Work?

A covered call has two parts.

First, you own shares of a company. Second, you sell a call option on the same company’s shares.

A call option gives its buyer the right to buy the shares at a fixed price. This fixed price is called the strike price. The buyer pays an amount known as the option premium for this right.

When you sell the call option, you receive the premium. But you also accept the obligation to sell or deliver the shares if the option finishes in the money at expiry.

The strategy is called “covered” because you already own the shares that may need to be delivered. It does not mean that your investment is protected from losses.

Let us understand the complete strategy through an example.

Assume Priya owns 5,000 shares of ABC Ltd. at an average purchase price of ₹100 per share. Her total investment is ₹5 lakh.

Priya does not expect ABC Ltd. to rise sharply over the next month. She would also be comfortable selling the stock if it reaches ₹110.

She sells one call option with a strike price of ₹110 and receives a premium of ₹3 per share.

The total premium received is: ₹3 x 5,000 = ₹15,000

Assume that one option contract contains 5,000 shares. This lot size is only for the example. Actual lot sizes differ across stocks and are decided by the exchange.

Priya receives ₹15,000 by selling the call. In return, she may have to sell her 5,000 shares at ₹110 if the option finishes above the strike price at expiry. Her final result will now depend on where ABC Ltd. trades at expiry.

Why Do Investors Use a Covered Call Strategy?

Investors generally use a covered call when they already own shares but do not expect a sharp price increase in the near term.

For example, assume you hold shares worth ₹5 lakh. You remain positive about the company over the long term, but believe the stock may stay around its current price for the next month. Instead of only holding the shares, you can sell a call option and collect a premium.

This can generate additional income during a period when the stock may otherwise deliver little or no return.

However, you receive this premium by accepting an obligation. If the stock rises above the strike price of the call option, you may have to sell your shares at that price, even if the market price has moved much higher.

Therefore, the basic covered call trade-off is:

A covered call can work well when the stock remains flat or rises slowly. It can be disappointing when the stock rises sharply, because the gain above the strike price is given up.

How Does a Covered Call Perform in Different Scenarios?

A covered call can produce very different outcomes depending on whether the stock remains flat, rises or falls.

1. If the stock remains flat or rises moderately

Suppose ABC Ltd. remains at ₹100 until expiry. Since the market price is below the ₹110 strike price, the call option expires without value.

Priya continues to own the shares and keeps the ₹15,000 premium. There is no gain or loss on the stock, but the premium gives her an overall profit of ₹15,000 before costs.

Now suppose the stock rises to ₹105.

Priya earns ₹5 per share on her holding, resulting in a stock profit of ₹25,000. Since the stock remains below the ₹110 strike price, the option again expires without value.

After adding the ₹15,000 premium, her total profit becomes ₹40,000.

This is the kind of outcome for which covered calls are commonly used. The stock rises moderately, and the investor benefits from both the stock gain and the premium.

2. If the stock reaches or crosses the strike price

Suppose ABC Ltd. reaches ₹110 at expiry. Priya earns ₹10 per share on her stock, resulting in a profit of ₹50,000. After including the ₹15,000 premium, her total profit becomes ₹65,000.

This is the maximum theoretical profit from the covered call.

Now suppose ABC Ltd. rises further to ₹125. Without selling the call, Priya’s stock profit would have been ₹25 per share, or ₹1,25,000 on 5,000 shares.

However, because she sold the ₹110 call, she may have to sell the shares at ₹110. Her profit from the stock remains limited to ₹50,000, while the premium adds another ₹15,000.

Her total covered call profit therefore remains ₹65,000.

Priya still earns a profit, but she gives up ₹60,000 of additional upside in exchange for the ₹15,000 premium received earlier.

This is the biggest drawback of a covered call. The premium may be small compared with the gain you could miss if the stock rises sharply.

If the stock falls

Suppose ABC Ltd. falls from ₹100 to ₹90.

Priya loses ₹10 per share on the stock, resulting in a loss of ₹50,000. The call option expires without value, so she keeps the ₹15,000 premium.

Her overall loss becomes ₹35,000.

The premium cushions the fall, but it does not protect Priya from a significant decline in the stock. If the stock falls further, the loss on the shares can become much larger than the premium received.

The complete payoff can be summarised as follows:

How Are Profit, Loss and Break-Even Calculated?

A covered call has a limited maximum profit but substantial downside risk. Using Priya’s example, the key calculations are:

The break-even price is ₹97 because the ₹3 premium lowers Priya’s effective purchase cost. The combined position begins to lose money if the stock falls below ₹97, excluding charges.

The maximum profit is ₹65,000. It is reached when the stock is at or above the ₹110 strike price at expiry. Even if the stock rises much higher, the profit remains capped at this level.

The maximum theoretical loss is ₹4,85,000 if the stock falls to zero. This shows the main risk of a covered call: the premium provides only a small cushion, while most of the downside risk of owning the stock remains.

What Do You Gain and Give Up With a Covered Call?

The biggest benefit of a covered call is that it allows you to collect an option premium from shares you already own. This can improve your return when the stock remains flat or rises moderately.

The premium also lowers the break-even price. In Priya’s case, the break-even falls from ₹100 to ₹97. Therefore, the stock can fall by ₹3 before the overall position enters a loss.

However, this protection is limited. If the stock falls from ₹100 to ₹70, the ₹3 premium will offset only a small part of the decline. A covered call should not be treated as insurance against a falling stock.

The strike price can also work as a planned selling price. If Priya is already willing to sell ABC Ltd. at ₹110, the premium compensates her for accepting that obligation.

But this benefit applies only when she is genuinely comfortable selling at ₹110. If she wants to retain the shares even after the stock rises, selling the call can create a difficult situation.

The strategy also limits the investor’s upside. A stock can rise quickly after strong results, a major order, an acquisition or another positive development. In such a case, the gain given up may be much larger than the premium received.

A high option premium can look attractive, but it often reflects higher expected volatility. The market may be expecting a sharp price movement, especially around major company events.

There are also practical requirements to consider. The number of shares owned should match the option contract quantity for the position to be fully covered. Depending on the stock price and lot size, this may require a large investment in one company and increase portfolio concentration.

Selling the call may also require margin or pledged collateral. In India, stock option positions held until expiry can involve physical settlement. This means an investor with an in-the-money short call may have to deliver the required shares.

Brokerage, Securities Transaction Tax, exchange charges, GST, stamp duty and other costs will also reduce the premium finally retained.

When Does a Covered Call Make Sense?

A covered call may make sense when you already own the required quantity of shares and expect the stock to remain flat or rise moderately.

You should also be comfortable selling the shares at the chosen strike price. This is the most important condition.

Suppose Priya would be happy to exit ABC Ltd. at ₹110. In that case, selling the ₹110 call may align with her plan. If the stock stays below ₹110, she keeps the premium and continues holding the shares. If it rises above ₹110, she earns her planned stock profit along with the premium.

However, the strategy may not make sense if Priya expects the stock to rise sharply or wants to hold it regardless of the price.

It may also be unsuitable when a major event is approaching, such as financial results, a regulatory decision or a large corporate announcement. These events can cause sharp price movements.

The contract should also have sufficient liquidity. A wide difference between buying and selling prices can make it difficult or expensive to exit the option position.

You should not select a covered call only because the premium looks high. First understand why the premium is high and what risk the market may be pricing in.

Before selling the call, consider these questions:

1. At what price am I genuinely willing to sell the shares?
2. How much premium will I retain after all costs?
3. How much upside am I giving up?
4. How much protection does the premium provide if the stock falls?
5. Is a major company event approaching?
6. Do I own enough shares to match the lot size?
7. Do I understand the margin and settlement requirements?

The decision should begin with the strike price, not the premium. First choose a selling price that you are comfortable with. Then judge whether the available premium makes the trade worthwhile.

Covered Call Strategy: Final Takeaway

A covered call allows you to earn an option premium from shares already held in your portfolio. It can improve your return when the stock remains flat or rises moderately.

But the premium is not free income. You earn it by giving up gains above the strike price and accepting the possibility that your shares may have to be sold.

The strategy also does not remove the downside risk of owning the stock. A sharp fall can create a loss much larger than the premium received.

A covered call is therefore most suitable when you are moderately positive on the stock, do not expect a sharp near-term rise and are genuinely willing to sell at the selected strike price.

Derivatives involve significant risk and are not suitable for everyone. This content is for educational purposes and is not investment advice.