The put option gives the buyer the right, but not the obligation, to sell a given quantity of the underlying asset at a given price on or before a given date. The put option gives the buyer the right to sell the underlying asset at the exercise price up to the date of the contract. The seller of put option [...]
Prof. Robert C. Metron and Prof. Myron S. Scholes have been awarded Nobel prize in Economics in 1997 for having developed a pioneering formula for the valuation of derivatives and other stock options. In fact, they developed this method in collaboration with Prof. Fischer Black, who died in 1995. In 1973 Black and Scholes published what has come to be [...]
An alternative form of valuation is to use the Black-Scholes formula for a put, which is: P = Xe –r(T-t) [1-N(d2)] – S [1-N(d1)] Where d1 and d2 are as given in the section deriving a call option. Note that [1 - N(d2)] is the same as N(-d2) and [1 - N(d1)] is the same as N(-d1). Using the same [...]