Options, page-53

Thanks for the reply winnetwo, definitely clarified the difference between company listed and options boards. Cheers. Can I bother you further and ask if you could confirm the other part of my question in relation to the purchase price of company listed options? What, If any, additional costs if you choose to exercise the options later for a profit? Or How exactly do company listed options work? I'm nowhere near educated enough to venture anywhere near option boards yet