Chapter 03 · Section 3.1

The diagram of the evolution

The diagram of the stock price evolution develops in this direction ------>
<--------The diagram of the put value evolution develops in this direction.

What is the price of the put?

The value is obtained in the following manner: (1/(1+interest rate)) x {(3rd period value of call x probability of attaining that value) + (3rd period value of call x probability of attaining that value)}.