Chapter 6: The Joy of Selling (Writing) Covered Calls

Book: Understanding Options 2E

Type: Chapter 6

Difficulty: Beginner

Reading time: 13 min

Core idea

A covered call is renting out stock you already own

When you sell a covered call you keep your 100 shares of a stock and sell someone else the right to buy those shares at a chosen strike price before a chosen expiration date. In exchange you collect a cash premium immediately. The word covered matters: it means the shares you might be forced to deliver are already sitting in your account, so you cannot be squeezed by a runaway stock price the way a naked seller would be.

The trade is best understood as a landlord arrangement. You still own the asset, you still collect its dividends, and you still benefit if it appreciates up to the strike. In return for the rent — the premium — you give up any upside past the strike during the life of the contract.

Two reasons people sell covered calls

The first reason is income. Premium hits your account within a day of selling, and many investors repeat the trade month after month against the same shares. The second reason is exit liquidity: if you were already willing to sell at a particular price, you may as well get paid extra premium for promising to do so. Both motivations share the same setup; only your preferred outcome differs.

Why it matters

Income against shares that would otherwise just sit there

Long-term shareholders in steady, slow-moving companies often watch their stock drift sideways for months. Covered calls turn that flat range into a recurring cash stream without selling the underlying position. The trade can also be placed inside an IRA or 401(k), so the premium can compound tax-deferred — a notable structural advantage over many other options strategies that are restricted to taxable accounts.

A natural classroom for the rest of options

Selling covered calls touches almost every concept you will see again later: strike selection, expiration trade-offs, in/at/out of the money mechanics, premium components, and the buyer-vs-seller risk asymmetry. Understanding the covered call is the cheapest way to internalize the language of options because the worst-case outcome — selling your stock at a price you already liked — is rarely catastrophic.

Key takeaways

Key takeaways

• A covered call is the sale of a call option against 100 shares of stock you already own.
• The premium is yours to keep the moment the order fills, regardless of what happens later.
• You keep all dividends and any stock appreciation up to the strike price, but lose any upside above the strike.
• Choosing the strike picks your trade-off: in the money pays the most premium, out of the money preserves the most upside.
• The further out the expiration date, the larger the premium — because there is more time value to sell.
• Covered calls are one of the few options strategies allowed in tax-advantaged accounts like IRAs.

Mental model

click to zoom

The covered call exchange — what you give and what you get

Read it as: Selling a covered call swaps a near-term upside cap for immediate cash. Both terminal outcomes are positive for the seller — either the shares get called away at a price they were willing to accept, or the option expires worthless and the seller pockets the premium and starts the cycle again.

Practical application

1. Pick a stock you already own (or intend to own) in 100-share lots — Covered calls require at least 100 shares per contract you sell.
2. Open the option chain for that ticker — Look at the calls in upcoming expiration months; focus on the bid column because that is what you collect as the seller.
3. Pick the expiration — Closer expirations decay faster (good for sellers) but pay less premium; further-out expirations pay more but tie up the shares longer.
4. Pick the strike — Out of the money strikes preserve more stock upside; at the money and in the money strikes pay larger premiums but raise the odds of assignment.
5. Calculate dollar premium — Multiply the per-share bid by 100 to see actual cash. A $2.30 bid on one contract is $230 of premium.
6. Place the order as “Sell to Open” — This is the option-chain terminology for opening a new short call position.

A useful test before placing the trade

Ask yourself: “Would I happily sell this stock at the strike price, today?” If the answer is yes, the worst case of a covered call is also a good case. If the answer is no, choose a higher strike or a different stock.

Example

Selling a one-month call on a steady utility

Pretend you own 100 shares of a steady regional utility, Cascade Power, trading at $42. You are happy to hold the position for the dividend but you do not expect a near-term rally. You look at next month’s calls and see the $43 strike is bidding $0.90.

You enter “Sell to Open, 1 contract, $43 call, limit $0.90” and the order fills. Ninety dollars in premium settles into your account the next business day. Three weeks later expiration arrives. If Cascade is at $41, the call expires worthless: you keep the $90, you keep the shares, and you sell another call for the following month. If Cascade is at $44.50, the call is in the money and your shares are called away at $43. You still keep the $90 premium, plus the $1 per share gain from $42 to $43 — a combined $190 profit on the position over three weeks. The only outcome you would regret is Cascade surging to $50, because your upside above $43 belongs to the buyer for the life of the contract.

Related lessons

Related

Chapter 5: The Fascinating Characteristics of Options The vocabulary foundation every covered call depends on. Chapter 7: How to Choose the Right Covered Call Moves from what a covered call is to which one to pick. Book Overview: Understanding Options 2E Beginner-friendly tour of options from terminology through strategy.