Futures) is a general term for this kind of securities. Bonds, bonds, government bonds and corporate bonds are all bonds, which can be understood as IOUs/IOUs, and are loans to an enterprise, country or individual (income can be understood as interest). Stock can be understood as investing in a listed company, becoming its shareholder (partner) to share the company's income and take risks, and the fund is also an investment partnership.

It can be understood as a product tool for investment and wealth management, with different income risks.