What is options trading?
What is options trading?.
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Trading options has never been easier to access. Commission-free investment platforms put these contracts a few taps away, and trading volume keeps breaking records. More than 70 million options contracts changed hands on an average trading day in the first half of 2026, according to the Options Clearing Corporation (OCC).
That easy access hides a complex product. Options can multiply your gains, shield your portfolio from a downturn, or wipe out your money faster than almost any mainstream investment. That's why it's essential to make sure you understand them before you put your money on the line.
Let's break down what options are, how a trade works from start to finish, who is behind these contracts, and what benefits and risks they present.
An option is a contract that locks in a price to buy or sell an asset for a limited time. You pay an up-front fee, or premium, for that contract. If prices move in your favor, you can cash in on your locked-in price and pocket the difference. If they don't, you can simply walk away. As the contract's buyer, your loss stops at the premium you paid.
Options belong to a family of investments called derivatives. The name fits because the contract's value derives from the price of something else. You never have to own the underlying stock or asset to trade options on it.
Standard stock options come in contracts of 100 shares each. So a premium quoted at $2 per share actually costs you $200 per contract. In addition to contract size, you'll see five terms in your contract:
Underlying asset: This is the asset tied to the contract. That's usually a stock, but options also exist on exchange-traded funds (ETFs) and market indexes.
Premium: The fee you pay for the contract itself. It's your cost of entry and the most you can lose as a buyer.
Strike price: The locked-in price where the contract lets you buy or sell the underlying asset.
Expiration date: The deadline attached to every contract. Once it passes, the option stops existing.
Exercising your option: This means using your contract to buy or sell shares at the strike price.
Call option: A call lets its buyer purchase shares at the strike price.
Put option: A put lets its buyer sell shares at the strike price.
You buy calls when you expect a stock to rise, and buy puts when you expect it to fall or want protection against a drop.
Notice how buying and selling do double duty in options, which can trip up almost everyone at first. You buy or sell options contracts, and the contracts themselves allow you to buy or sell shares.
The two don't always point in the same direction. Put buyers purchase contracts that allow them to sell shares. When options traders talk about buyers or sellers, they typically refer to the contracts, not the underlying assets they're tied to.
Paying for the ability to buy 100 shares at the strike price
