Option Terminology

Option is a derivative contract that gives the holder the right, but not the obligation, to buy or sell a specified quantity of a commodity at a predetermined price (the strike price) on or before a certain date (the expiry date).

A call option confers the right to purchase the underlying commodity, whereas a put option confers the right to sell it. The party who sells (writes) the option is called the option writer and receives the premium – the price paid by the buyer for the right.

The underlying is the actual commodity (e.g., crude oil, gold) whose price drives the option’s value. The premium consists of two components: intrinsic value (if any) and time value. Understanding each component helps you answer premium‑related questions in the exam.

• Strike Price – agreed price at which the commodity can be bought or sold.
• Expiry Date – the last day on which the option can be exercised.

In‑the‑Money (ITM) means the option would generate a positive payoff if exercised immediately. For a call, this occurs when the spot price (S) is above the strike (K); for a put, when S is below K.

Out‑of‑the‑Money (OTM) indicates no intrinsic value – a call is OTM when S < K, and a put is OTM when S > K. These options have only time value left.

At‑the‑Money (ATM) describes a situation where S is equal (or very close) to K. ATM options have zero intrinsic value but usually possess the highest time value because market participants are uncertain about future direction.

Exam questions frequently present a spot price and ask you to classify the option’s moneyness. Mis‑reading the direction (call vs. put) is a common error.

American style options can be exercised at any time up to and including the expiry date. This flexibility is valuable for commodities with volatile spot prices.

European style options may be exercised only on the expiry date. They are simpler to price and are common in index‑linked commodity derivatives.

Indian commodity exchanges (e.g., MCX) primarily list American‑style options, but some contracts, especially those linked to international benchmarks, may be European.

Settlement can be physical – delivery of the actual commodity – or cash – a cash payment equal to the payoff. SEBI mandates that most commodity options settle physically, but cash settlement is allowed for certain contracts to reduce logistics burden.

The payoff formulas are the backbone of most NISM option‑pricing questions. They illustrate that an option’s value at expiry is never negative – the holder can simply let the contract lapse.

When solving multiple‑choice questions, plug the given spot and strike values directly into the appropriate formula. Remember to use the call formula for call options and the put formula for puts.

Typical traps include forgetting the "max" function and reporting a negative payoff, or mixing up S and K. The exam awards marks for correctly stating the payoff as zero when the option is OTM.

The option premium (P) can be broken down into intrinsic value and time value. Intrinsic value equals the immediate payoff if the option were exercised now: max(S‑K,0) for calls and max(K‑S,0) for puts.

Time value represents the extra amount investors are willing to pay for the possibility that the option becomes more valuable before expiry. It is calculated as: Time Value = Premium – Intrinsic Value.

Exam questions may provide the premium and ask you to compute intrinsic and time values, or vice‑versa. Remember that an ATM option has zero intrinsic value, so its entire premium is time value.