When the fund encounters a bear market, it can make a fixed investment, and the fixed investment does not need to choose the right time. The lower the fund falls, the lower the subscription cost, and the less risk investors bear. However, when the fund is in a bull market, it is not suitable for fixed investment, and the cost of fixed investment in the bull market will increase, so miss this opportunity. Bull market is suitable for one-time purchase.

Advantages of the fund's fixed investment: 1, saving time and worry, without staring at the market; 2. There is no need for timing or stop loss; 3. Compound interest calculation.