What Is the Impact of a High Interest Rate on the Time Value of a Call Option?
A high risk-free interest rate (Rho) generally increases the time value (extrinsic value) of a call option. This is because holding a call option is similar to borrowing money to buy the underlying asset later.
A higher interest rate increases the present value of the future strike price, making the right to buy at that price more valuable today, thus increasing the call option's premium.