Stock Market · Options Theory

Intrinsic value vs time value

Every option premium consists of two components: intrinsic value and time value. Understanding their separation is fundamental to understanding why options behave the way they do.

Intrinsic value

The real, exercisable value of the option RIGHT NOW if exercised immediately.

For a call: max(0, Current price − Strike price)

For a put: max(0, Strike price − Current price)

Example: Nifty at 22,400, 22,000 call trading at ₹450.

Intrinsic value = 22,400 − 22,000 = ₹400.

Time value = ₹450 − ₹400 = ₹50.

Time value (extrinsic value)

The portion of the premium ABOVE intrinsic value. It reflects the probability that the option will gain more value before expiry. It decays to zero by expiry.

> OTM options are 100% time value. ATM options have the highest time value (because the outcome is most uncertain. Could go either way).

Why time value matters

If you buy an ATM option and the underlying doesn't move, you still lose money. The time value decays every day (this is theta).

For option buyers: time is the enemy. You need the move to happen BEFORE the time value decays away.

For option sellers: time is the friend. Every day that passes without a big move, the premium decays in their favour.

Total premiumIntrinsic value + Time value

OTM optionstime value only (no intrinsic value at all)

At expirytime value = 0. Premium = pure intrinsic value only.

Takeaway. Premium = intrinsic value + time value. Time value decays to zero at expiry. OTM options have zero intrinsic value. You pay only for time and probability. Time works against buyers and for sellers.