It's not a zero sum game, it's a negative sum game, because options and futures don't have dividends like stocks. They don't make any profit after buying, and they have to pay transaction fees. In other words, closing the same price without rising or falling is a loss.

Both parties to a futures contract are given corresponding rights and obligations, and they must exercise their rights on the maturity date, and they can only exercise their rights on the maturity date unless they close their positions before the maturity date. Short sellers of futures even have the right to choose which day of the delivery month to deliver.

The option contract only gives the buyer the right, but the seller has no right. He has the obligation to buy and sell the subject matter only when the other party performs the contract. In particular, the buyer of American options may or may not exercise this right at any time within the agreed period; The seller of the option must be prepared to perform the corresponding obligations at any time.

Extended data:

Futures market first appeared in Europe. As early as ancient Greece and Rome, there were central trading places, bulk barter transactions, and trading activities with the nature of futures trade.

The original futures trading was developed from spot forward trading. The first modern futures exchange 1848 was established in Chicago, USA, and 1865 established a standard contract model. In 1990s, China Modern Futures Exchange came into being.