Generally speaking, buyers and sellers of gold futures sell and buy back contracts with the same number as the previous contracts before the contract expires, that is, close positions, and do not really deliver real money and silver. The profit or loss of each transaction is equal to the difference between two contracts in opposite directions. This way of buying and selling is what people usually call "speculating in gold". Gold futures contract trading only needs a margin of about 10% of the transaction amount as the investment cost, with high leverage and a small amount of funds to promote large transactions. Therefore, gold futures trading is also called "margin trading". Option is the price agreed by the buyer and the seller in the future, and it has the right but no obligation to buy a certain number of targets. If the price trend is favorable to both buyers and sellers of options, they will exercise their rights and make profits. If the price trend is unfavorable to it, it will give up the right to buy, and only the cost of purchasing options at that time will be lost. At present, there are not many gold option markets in the world, because the investment tactics of gold option trading are numerous and complicated, and it is not easy to master.