Introduction to Option Trading
Options Basics
What Are Options?
An option is a contract that gives its owner the right, but not the obligation, to buy or sell an underlying asset at a predetermined price on or before a specific date. Think of it like putting a deposit down on a house. You pay a small fee to lock in the price for a certain period. If you decide to buy, you exercise your right. If you change your mind, you just lose the deposit, but you're not forced to buy the house.
Options trading is a type of derivatives trading where traders buy the right (but not the obligation) to buy or sell an underlying asset—such as stocks, indices, or commodities—at a fixed price before a specified date.
This “right, not obligation” is the key feature of options. It gives the owner flexibility. The underlying asset is typically a stock, but it can also be an index, a commodity, or an ETF.
The Buyer and the Seller
Every options contract has two sides: a buyer and a seller.
The buyer, also known as the holder, is the one who purchases the option contract. They pay a fee for the rights granted by the contract. They hope the value of the underlying asset moves in their favor, making their option more valuable.
The seller, also known as the writer, is the one who sells the option contract. They receive the fee from the buyer. In exchange, they take on the obligation to fulfill the contract if the buyer decides to exercise their right. The seller is betting that the buyer will be wrong and the option will expire worthless, allowing them to keep the fee as pure profit.
| Role | Pays/Receives | Right/Obligation |
|---|---|---|
| Buyer (Holder) | Pays a fee | Gains the right to act |
| Seller (Writer) | Receives a fee | Has the obligation to act |
Anatomy of an Option
Every option contract is defined by a few key components. Understanding these terms is essential to understanding how options work.
strike price
noun
The predetermined price at which the underlying asset can be bought or sold if the option is exercised.
The strike price is fixed for the life of the option. It's the benchmark that determines whether an option is profitable to exercise.
expiration
noun
The date on which an option contract becomes void. The owner must exercise their right on or before this date.
Options have a limited lifespan. If the option is not exercised by its expiration date, it ceases to exist, and any value it had is lost.
premium
noun
The price of an option contract. It's the amount the buyer pays to the seller to acquire the rights of the option.
The premium is the cost of entry for the buyer and the potential profit for the seller. Since a standard stock option contract represents 100 shares of the underlying stock, the total cost of the premium is the quoted price multiplied by 100.
For example, if an option has a premium of $1.50, the buyer would pay $150 ($1.50 x 100) to the seller for the contract.
So, to recap: a buyer pays a premium to a seller for a contract that gives them the right to buy or sell an asset at a set strike price until a specific expiration date.
Now that you understand the basic building blocks of an option, you're ready to explore the two fundamental types of options: calls and puts.