The Black-Scholes formula is a widely used model for calculating the theoretical price of options. Discover options products with expiration dates up to three years in the future.Generate fair value prices and Greeks for any of CME Group's options on futures contracts or price up a generic option with our universal calculator. Calculating position delta will help understand how your option positions should react to a change in the underlying stock price. Line fill rate refers to the percentage of line items that you managed to fill completely out of all the order lines that need to be filled. Complete Form PTAX-203-B, Illinois Real Estate Transfer Declaration Supplemental Form B. 11 Full actual consideration. Prior to buying or selling an option, a person must receive a copy of Characteristics and Risks of Standardized Options. Because a Standing Purchase Order indicates no quantity, departments do not have the option to request "Receiving" for these orders. An investor who buys or owns stock and writes call options in the equivalent amount can earn premium income without taking on additional risk. Participants will have the option to purchase multiple products when issued one type of formula.