Option Premium: The Price Paid for an Option Contract

An option premium is the market price of an option contract.

It is:

• paid by the option buyer
• received by the option seller

The premium is the cost of buying the right embedded in the option. It is also the maximum possible profit for the seller if the option expires worthless.

What Makes Up an Option Premium

Option premium is usually described as having two parts:

Intrinsic Value

Intrinsic value is the immediate exercise value of the option.

• for a call, it is how far the market price is above the strike price
• for a put, it is how far the market price is below the strike price

Time Value

Time value is everything in the premium beyond intrinsic value.

It reflects the possibility that future market moves could make the option more valuable before expiration.

Why Option Premium Changes

Option premium is not fixed. It moves as market conditions move.

The main drivers are:

• the underlying asset price
• strike price
• time to expiration
• implied volatility
• interest rates

These forces do not affect every option equally. A near-term out-of-the-money option behaves differently from a long-dated in-the-money option.

Worked Example

Suppose a stock is trading at $55 and a call option with a $50 strike is trading for $8.

Its intrinsic value is:

So the remaining $3 of the premium is time value.

That means the buyer is not just paying for today’s exercise value. They are also paying for the chance that the stock moves even further before expiration.

Why Option Buyers and Sellers Care So Much

For the buyer:

• premium is the upfront cost of entering the trade
• for a long option, it is also the maximum possible loss

For the seller:

• premium is the cash received at entry
• it may look attractive, but it comes with exposure if the option moves against the seller

This is why premium should never be interpreted as “free income.” It is compensation for risk transfer.

Premium and Moneyness

Premium is closely tied to where the market price sits relative to the strike.

In broad terms:

• deeper in-the-money options usually have more intrinsic value
• out-of-the-money options usually consist only of time value
• near-the-money options often have the richest balance between sensitivity and uncertainty

Related Terms

• Intrinsic Value: The immediate exercise value embedded in the option.
• Time Value: The part of premium driven by time and uncertainty.
• Strike Price: A core determinant of intrinsic value.
• Implied Volatility: A major driver of option pricing.
• Call Option: One of the two basic option types whose premium traders analyze.

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