The second question: No, there are currently 300 stock-weighted stock index futures in Shanghai and Shenzhen. You can buy constituent stocks and calculate the number of stock index futures contracts corresponding to the stocks you hold.
Option, also known as option, is a derivative financial instrument. Refers to the right to buy and sell in a certain period of time in the future, which means that the buyer pays a certain amount to the seller (refers to the right
Gold) buys or sells a certain number of specific subject matter from the seller at a predetermined price (referring to the strike price) in the future (referring to American options) or on a specific date in the future (referring to European options).
Yes, but you don't have to buy or sell it.