You hold an American option to sell one share of Zyther Co. stock. The option expires tomorrow.

Question:

You hold an American option to sell one share of Zyther Co. stock. The option expires tomorrow. The of the option is $50, and the current stock price is $49. What is the value of exercising the option today? If you wanted to sell the option instead, about how much would you expect to receive?

Strike Price
In finance, the strike price of an option is the fixed price at which the owner of the option can buy, or sell, the underlying security or commodity.