Complete stock option management application. Calculates the value of an option using the Black-Scholes formula. Returns options chains for an equity. Returns extended options chains for an equity. Returns options chain for an equity. Returns extended options chain for an equity. Returns a specific equity option. Returns a specific equity extended option. Returns the symbol for an equity option based on month, year and strike price. Returns a specific equity option. Returns a specific equity extended option. Returns an array of specific equity options. Returns an array of specific equity extended options. Calculates the value of an option using the Black-Scholes formula. Returns options chains for an equity. Returns extended options chains for an equity. Returns options chain for an equity. Returns extended options chain for an equity. Returns a specific equity option. Returns a specific equity extended option. Returns the symbol for an equity option based on month, year and strike price. Returns a specific equity option. Returns a specific equity extended option. Returns an array of specific equity options. Returns an array of specific equity extended options. Calculates the value of an option using the Black-Scholes formula. Returns options chains for an equity. Returns extended options chains for an equity. Returns options chain for an equity. Returns extended options chain for an equity. Returns a specific equity option. Returns a specific equity extended option. Returns the symbol for an equity option based on month, year and strike price. Returns a specific equity option. Returns a specific equity extended option. Returns an array of specific equity options. Returns an array of specific equity extended options. Complete stock option management application.