1. Securities investment fund is a kind of collective securities investment model with * * * income and * * risk, that is, by issuing fund shares, fund managers manage and use funds to invest in financial instruments such as stocks and bonds.

2. Stock is a certificate issued by a joint-stock company to prove the shares held by shareholders, and it is the form of the company's shares. Investors become the owners of the issuing company by buying shares, get the expected annualized income from their operations and participate in major decision-making voting according to the shareholding ratio.

3. With different basic assets, the choice of funds is more abundant. The stock bought the ownership of the company. In essence, what we buy is the profitability of the company; Fund is essentially a collective investment. The underlying assets are relatively rich, and stocks are just one of them. Funds can also invest in bonds, commodities, real estate, gold, bank deposits, various indexes and so on.