Stock is a kind of securities, which is a certificate issued by a joint-stock company to investors publicly or privately when raising capital to prove the identity and rights of investors' share capital, and to enjoy rights and assume obligations according to the number of shares held by the holders. Stock index futures refer to standardized futures contracts with stock price index as the subject matter. Both parties agree to buy and sell the underlying index on a specific date in the future according to the size of the stock price index determined in advance. Stock option means that the company grants employees the right to buy a certain share of the company's shares at a fixed option price within a certain period of time (such as 10 years). So conceptually, stock option is a company incentive system, and stock and stock index futures are all valuable securities in the final analysis. The difference is that stocks need to go up before investors can make a profit, while stock index futures can make a profit regardless of their ups and downs.

Securities stars seek shares.