Option contract refers to the right to buy and sell a certain number of trading products at a specific price in a specific period of time. The credit risk of option trading is very small. When the price of this kind of goods falls in this specific time, bulls do not need to perform any obligation and bear any risk, because you have spent money to buy options before trading. Futures contract means that both parties promise to sell or buy a certain amount of "goods" at a specified unit price one day in the future. Futures contracts need to bear more obligations and risks than option contracts. Long holders need to buy a specified amount of "goods" at a specified price no matter whether the price of such "goods" rises or falls.