Put option

PrepNuggets

An option contract that gives the LONG the right to SELL an underlying asset to the SHORT at the exercise price, but no obligation to.

The SHORT is required to BUY at the exercise price, if LONG exercises the right to sell.

Value of European option (PUT) at expiration:

CT = max(0, X-ST)

ST: Spot price at expiration

X: Exercise price

Compare: Call option