1. Fixed investment is the abbreviation of fixed-term investment fund, which refers to investing a fixed amount (such as 500 yuan) in a designated open-end fund at a fixed time (such as the 8th of each month), similar to the deposit and withdrawal method of banks. People usually refer to funds mainly as securities investment funds.

2. Automatic investment plan (AIP) is called lazy financial management, and its value stems from a saying circulating on Wall Street: "It is more difficult to step on the market accurately than to catch a flying knife in the air." If you adopt the method of buying in batches, you will overcome the defects of buying and selling at one time, balance the cost and make yourself invincible in investment, that is, the fixed investment method.