4. What is a Put Option?

A Put Option is a derivative contract that gives the buyer the right (but not the obligation) to sell a specific quantity of an underlying asset (such as a stock, index, commodity, or currency) at a pre-decided price (known as the strike price) on or before a specific expiry date.

The buyer pays a premium to the seller for this right. If the market price of the asset falls below the strike price, the buyer of the put option can sell it at the higher fixed price, thus making a profit.

Purpose of a Put Option

Put options are mainly used for two reasons:

  1. Speculation – To profit from a decline in the price of an asset.
  2. Hedging – To protect a long position in a portfolio from falling prices.

It is a powerful tool for bearish traders or for investors who want to insure their holdings.

Real-Life Analogy

Think of a put option like insurance.

Example: If you own a car worth ₹10 lakh, you might pay ₹20,000 to insure it.

In the same way, a put option protects your stock from falling. If the market falls, the option gains in value. If the market rises, you lose only the premium paid.

Components of a Put Option Contract
ComponentDescription
Underlying AssetThe asset you are getting the right to sell (e.g., Infosys stock)
Strike PriceThe price at which you can sell the asset (if exercised)
Expiry DateThe last date on which the option can be exercised
PremiumThe amount paid to the seller for buying the option
Lot SizeFixed number of units per contract (e.g., 300 shares for Infosys)
Example – Buying a Put Option

Scenario A – Stock drops to ₹1,420

Scenario B – Stock stays above ₹1,480 (e.g., ₹1,510)

Payoff Analysis Table
Infosys Price at ExpiryActionProfit / Loss
₹1,500No exercise–₹6,000 (premium lost)
₹1,480 (Strike)Breakeven–₹6,000
₹1,460Exercise₹0 (no net loss/gain)
₹1,420Exercise₹12,000 profit
Breakeven Calculation

Formula:

Breakeven Point = Strike Price – Premium Paid

= ₹1,480 – ₹20 = ₹1,460

At ₹1,460, the profit from the option exactly offsets the premium paid — there is no net loss or gain.

When Should You Buy a Put Option?
Market ViewAction
Expect price dropBuy a Put Option
Holding a stockBuy a Put for hedge
Volatility highBuy Put for protection
Key Benefits of a Put Option
BenefitExplanation
Limited RiskMaximum loss = premium paid
High Profit PotentialProfit increases as price drops toward zero
Perfect for Bearish TradersIdeal when expecting a downtrend
Effective Hedging ToolProtects against falling prices in long-term portfolios

Payoff Diagram: Put Option (Buyer)

Summary