Deep Dive
What Is an Option?
Big Idea
An option is a contract. It is not the stock itself.
An option gives someone the right, but not the obligation, to buy or sell something at a set price by a certain date.
That last part is important: the buyer has a choice.
They can use the option if it helps them. They can ignore the option if it does not. That is why it is called an option.
A Simple Example
Imagine a stock called Acme Inc.
Acme shares are currently trading at $50 per share.
You pay $500 for an option contract that gives you the right to buy 100 shares of Acme at $50 per share.
This means you have locked in the right to buy Acme at $50, even if the market price changes. But you are not required to buy the shares. That choice is what makes the contract valuable.
Options Are Different From Owning Shares
When you buy a share of stock, you own part of the company.
When you buy an option, you own a contract connected to the stock.
That contract may become valuable if the stock moves in a favorable direction. But if the stock does not move in a favorable direction, the option can lose value — in some cases, it can expire worthless.
The option is not the asset itself. It is a contract based on an asset.
Key Terms
Option
A contract that gives the buyer the right, but not the obligation, to buy or sell an underlying asset at a set price by a certain date.
Buyer
The person who purchases the option and pays the premium. The buyer has a choice — they can use the option, sell it, or let it expire.
Seller / Writer
The person who creates or sells the option contract. The seller receives the premium but takes on an obligation: if the buyer chooses to use the option, the seller may be required to complete the transaction.
Underlying Asset
The thing the option is based on. For stock options this is usually a stock or ETF. Options can also be based on indexes, commodities, currencies, or futures.
Contract
An option is a contract with specific terms: what asset it covers, whether it gives the right to buy or sell, the strike price, the expiry date, and the cost. A standard stock option contract usually represents 100 shares.
Premium
The price paid for the option — the cost of getting the choice. The buyer pays the premium; the seller receives it. If the option expires worthless, the buyer does not get the premium back.
Interactive Check
You pay $500 today for the right to buy 100 shares of Acme at $50 per share. The option expires in one month.
Are you required to buy the shares?
Why Would Someone Buy an Option?
Someone might buy an option because they want the chance to benefit from a price movement without buying or selling the underlying asset right away.
Options can be used for speculation, hedging, income strategies, and risk management. But options can also be risky, especially when they are not understood. The first step is to understand the basic contract.
The Most Important Takeaway
- An option is a contract that gives the buyer a choice.
- The buyer pays a premium for that choice.
- The seller receives the premium but takes on an obligation.
- The option is connected to an underlying asset — but it is not the same as owning the asset.
- The buyer has a right, not an obligation. The seller may have an obligation.
Next Lesson
The two basic option types: calls and puts