Options Trading Essentials
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 asset at a set price on or before a specific date. Think of it like a coupon for a stock. You can use the coupon to buy the item at a discount if the price is right, but you don't have to. If it's a bad deal, you can just let the coupon expire.
Think of options as an agreement, a contract giving you the right, but not the obligation, to buy or sell an underlying asset – typically shares listed on the NSE or BSE – at a predetermined price (called the strike price) on or before a specific date (the expiration date).
This contract is a powerful tool. It allows you to speculate on the future price of a stock or to protect your existing investments from a downturn. Every option has three key components you need to know.
Strike Price
noun
The fixed price at which you can buy or sell the underlying asset. This price is set when the contract is created.
Premium
noun
The price of the option contract itself. The buyer pays the premium to the seller to acquire the rights of the contract.
Expiration
noun
The date when the option contract becomes void. The owner must exercise their right on or before this date.
Calls and Puts
Options come in two basic flavors: calls and puts. They're opposites, designed for different predictions about where a stock's price is headed.
A call option gives you the right to buy an asset. You'd buy a call if you think the price of the asset is going to go up.
Let's say you believe shares of a company, currently trading at $48, are about to rise. You could buy a call option with a $50 strike price that expires in one month. You might pay a $2 premium per share for this right.
If the stock jumps to $55 before expiration, your option is valuable. You have the right to buy shares at $50, even though they're trading for $55. You could exercise the option, buy the shares at $50, and immediately sell them for $55, making a profit (minus the premium you paid).
A put option gives you the right to sell an asset. You'd buy a put if you think the price of the asset is going to go down.
Now, imagine you own shares of a company trading at $100, and you're worried the price might fall. To protect yourself, you could buy a put option with a $95 strike price. This gives you the right to sell your shares for $95, no matter how low the market price drops. It's a form of insurance.
Alternatively, if you don't own the stock but believe it will fall, you could buy the same put option. If the stock price drops to $85, your right to sell at $95 becomes profitable. Your option contract is now worth at least $10 per share.
Two Sides to Every Trade
For every option contract, there is a buyer and a seller. Their roles and risks are mirror images of each other.
| Role | Action | Goal | Risk | Reward |
|---|---|---|---|---|
| Buyer (Holder) | Pays premium | Asset price moves in their favor | Limited to premium paid | Potentially high |
| Seller (Writer) | Receives premium | Asset price stays put or moves against the buyer | Potentially high | Limited to premium received |
The buyer, also called the holder, pays the premium to acquire the rights. Their maximum loss is capped at the price of the premium. They can't lose more than what they paid for the contract.
The seller, also known as the writer, collects the premium and takes on an obligation. If the buyer decides to exercise the option, the seller must fulfill their end of the deal, either by selling their shares (for a call) or buying shares (for a put) at the strike price. Their profit is capped at the premium they received, but their potential loss can be much larger.
What fundamental right does an options contract grant to its buyer?
An investor believes the stock of a company, currently at $70 per share, will significantly increase in value. Which type of option would they most likely buy to speculate on this belief?