John Jagerson

The Advantages of Covered Calls

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The core principle of writing covered calls is that you are controlling risk and attempting to improve returns on a stock or exchange-traded fund (ETF) that you own.

You can do this by selling a call option against that stock or ETF and collecting the option premium. A covered call consists of a two-step process that is easy to implement by new and experienced investors alike.

The first step in writing a covered call is to be long the underlying stock or ETF.

Sometimes investors are selling a covered call against a stock they may have owned for a long time, and other times an investor may be buying the stock and selling the call option at the same time, which is sometimes called a "buy-write."

The second step in writing a covered call is to sell a call against that long stock or ETF position.

There are several factors to consider when you are selling the call, including expiration date, strike price and premium. In this article we will walk through a case study of a covered call to begin answering these questions.

Before we begin, you may want to check out part one of this series on selling options.

Covered Call Example

Imagine you own 500 shares of Apple (AAPL) and you want to sell five call contracts to make some income from those option's premiums. That trade is a covered call.   

The covered call is "covered" because you already own the stock. If prices rise and the call buyer wants to purchase the stock, you have the ability to fulfill on the contract without going to the open market because you already own the stock. This alleviates the problems with selling a call alone that we discussed in part one of this series.

Let's assume you had owned 500 shares of AAPL in late March 2008, when the stock was priced at $140, and sold a call against it with a strike price of $145 and a premium of $6 per share, or $600 per contract.

As the seller, you were paid $600 of premium per contract for five contracts of AAPL calls you sold, for a total of $3,000. That sounds good so far -- you made three grand.

However, let's now look at what happened to those options you sold at expiration, when that obligation to deliver the stock was due.

By April's expiration the stock is at $155 per share and the call buyer wants the stock. She has the right to buy it for the strike price of the calls, or $145. As detailed above, you already own it and your broker would just take it out of your account automatically.

You bought the shares of AAPL for $140, so by selling it for $145, you made an additional $5 per share, or $2,500, plus you keep the premium for the calls of $3,000. A good profit, but the downside of the option is that by selling the right to buy at the $145 strike price, you missed out on another $10 per share on the rise in the price of the underlying stock.

The advantage of owning the stock was that is protected you from the liability created by the big breakout in April. Otherwise, you would have been responsible for acquiring the stock on the open market for $155, which you would have had to sell for the $145 strike price.