Generating Income by Selling Options
Options Basics
What Are Options?
Imagine you see a house you might want to buy. You're not ready to commit, but you don't want someone else to swoop in and grab it. You could pay the owner a small fee for the option to buy that house at an agreed-upon price within the next three months. You have the right, but not the obligation, to make the purchase. If you decide against it, you just lose the fee you paid.
Financial options work in a similar way. They are contracts that give the buyer the right, but not the obligation, to buy or sell an underlying asset—like a stock—at a set price on or before a certain date.
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).
There are two basic types of options:
- Call options give you the right to buy an asset.
- Put options give you the right to sell an asset.
You can either buy or sell either of these types, creating four basic starting positions in any options trade.
Buyers and Sellers
Every options contract has two sides: a buyer and a seller. Their roles are mirror images of each other.
The buyer, also called the holder, pays a fee to acquire the rights granted by the option contract. They hope the underlying asset's price moves in their favor, making their option valuable. If it doesn't, the most they can lose is the initial fee they paid.
The seller, also called the writer, receives that fee. In exchange, they accept the obligation to fulfill the contract if the buyer decides to exercise their right. The seller is betting that the option will not be exercised, allowing them to keep the fee as pure profit.
| Role | Action | Right/Obligation | Max Profit | Max Risk |
|---|---|---|---|---|
| Buyer | Pays for the contract | Has the right to buy/sell | Potentially unlimited | Fee paid |
| Seller | Sells the contract | Has the obligation to buy/sell | Fee received | Potentially unlimited |
The Anatomy of an Option
To understand any options contract, you need to know three key components. These terms define the agreement between the buyer and seller.
Strike Price
noun
The fixed price at which the underlying asset can be bought or sold if the option is exercised. This price is set when the contract is created.
The strike price is the anchor of the contract. The difference between the strike price and the stock's market price is what ultimately determines if an option is profitable to exercise.
Expiration Date
noun
The date on which the option contract becomes void. The buyer must exercise their right on or before this date.
Time is a crucial element. An option is a decaying asset. As the expiration date gets closer, the option's value typically decreases, all else being equal. This is known as time decay.
Premium
noun
The price of the option contract itself. The buyer pays the premium to the seller to acquire the rights of the option.
The premium is determined by several factors, including the stock's price, the strike price, the time until expiration, and the stock's volatility. For the seller, the premium is the immediate income they generate from the trade.
Time to see how well you've grasped these core concepts.
What fundamental right does the buyer of a financial option contract hold?
An investor who believes the price of a stock will rise significantly would most likely buy a _______ option.
These building blocks—the strike price, expiration date, and premium—form the foundation of every options trade. Understanding them clearly is the first step toward using options effectively.