Essential Terms Every Options Trader Should Know

Every options contract follows a standard structure. Whether you are buying or selling an option, you will come across certain terms repeatedly.

Understanding these terms helps you read an option contract correctly and avoid confusion while placing trades.

In this chapter, we will learn six important terms:

• Strike Price
• Underlying Asset
• Option Premium
• Exercising an Option
• Expiry Date
• Option Settlement

1. Strike Price

The Strike Price is the fixed price agreed upon between the buyer and the seller of an option contract.

No matter how the market price changes later, the buyer has the right to buy (or sell, in case of a Put Option) at this price before expiry.

Example

Suppose a company's share is currently trading at ₹980.

You purchase a Call Option with a Strike Price of ₹1,000.

Even if the share price rises to ₹1,080, your contract still allows you to buy at ₹1,000.

The Strike Price never changes after the contract is created.

2. Underlying Asset

The Underlying Asset is the asset on which the option contract is based.

This can be:

• A company's share
• A stock market index
• A commodity
• A currency
• Any other financial instrument permitted for options trading

The value of the option changes because the price of the underlying asset changes.

Example

• If you buy an option on ABC Ltd., then ABC Ltd. shares are the underlying asset.
• If you buy an option on a stock index, then the index itself becomes the underlying asset.

Anatomy of an Option Contract

3. Option Premium

The Premium is the price paid by the buyer to purchase an option.

• Think of it as the cost of obtaining the rights offered by the option contract.
• The buyer pays the premium upfront, and the seller receives it immediately.
• Whether the buyer eventually exercises the option or not, the premium is generally not refunded.

Example

• Premium = ₹20 per share
• Lot Size = 500 shares
• Total Premium Paid = ₹20 × 500 = ₹10,000

This ₹10,000 is the buyer's initial investment in the option contract.

4. Exercising an Option

When a buyer decides to use the rights available under the option contract, it is called exercising the option.

• This usually happens when exercising the option provides a financial benefit.
• If exercising the option does not make sense, the buyer can simply allow the contract to expire.

Remember, the buyer has a choice, not an obligation.

5. Expiry Date

Every option contract has a limited life.

The Expiry Date is the last day on which the option remains valid.

After expiry:

• The contract automatically ends.
• The buyer loses all rights under the contract.
• If the option has no value at expiry, it expires worthless.

This is why time plays a very important role in options trading.

6. Option Settlement

Once an option expires or is exercised, the contract is settled according to exchange rules.

Settlement is the process of completing the financial obligations between the buyer and seller.

For many exchange-traded options, settlement takes place through a standardised process defined by the exchange.

The trader does not need to negotiate separately with the other party.

Life Cycle of an Option Contract

Quick Recap

Practical Tip

Whenever you look at an option chain or an option contract, first identify:

1. The underlying asset.
2. The strike price.
3. The premium.
4. The expiry date.

Understanding these four details before placing any trade can help reduce mistakes and improve decision-making.

Key Takeaways

• Every option contract contains a few standard terms that every trader should understand.
• The Strike Price is the fixed price agreed upon in the contract.
• The Underlying Asset is the financial instrument on which the option is based.
• The Premium is paid by the buyer to acquire the option.
• Exercising an option means using the rights available under the contract.
• Every option has an Expiry Date, after which it becomes invalid.
• Settlement completes the obligations between the buyer and seller after expiry or exercise.