Option Time Value - Premium Breakdown

Risk disclaimer

Strike-relationship math only; interest and dividends are ignored.

Intrinsic value is what exercising now would capture; time value is the premium for remaining time and volatility — it decays to zero by expiry.

A higher time-value share means more “time premium” you are paying.

Call spot 105, strike 100, premium 8 → intrinsic 5, time 3, time share 37.5%.

If premium is below intrinsic the input is invalid and you will be prompted.

Does time value always go to zero?

Yes at expiry; meanwhile it can fluctuate with volatility, but the trend is decay.

Pair with premium decay and Black-Scholes calculators.

Price European call and put options with the Black-Scholes model from spot, strike, time to expiry, volatility and risk-free rate.

Estimate the delta of European call/put options with Black-Scholes — the change in option price per 1 unit move in spot.

Estimate the gamma of European options with Black-Scholes — how fast delta changes as spot moves.

Estimate the vega of European options with Black-Scholes — price change per 1% increase in implied volatility.

Estimate the daily time decay (theta) of European options with Black-Scholes to understand the cost of holding.

Find the expiry break-even price of a single call or put from strike and premium, for both buyers and sellers.

Category: Options