Futures and Options contract provides option to trader to make money with minimal margin amount. Minimal margin is required only to avoid counter party risk. Future contract gives “rights to buy” for a buyer and “rights to sell” for a seller. Option contract gives “Rights to Buy” for a call option buyer, but not the obligation (it is not necessary and it is an option), similarly “Rights to Sell” for a put option buyer, but not the obligation (again it is an option).