The fund belongs to a mixed type and is not suitable for fixed investment. Being an index fund should be the best choice.

Fixed investment funds are suitable for long-term investment, and it is best to choose funds with back-end fees. Generally, funds with back-end fees are mostly required to be held for more than five years, and there are also three years, but very few. Fixed investment funds can make one or two fixed investments according to their own financial situation. In addition, fixed investment funds are suitable for stock funds and index funds, because of large fluctuations, which can effectively dilute costs. Other types of funds do not prohibit fixed investment, mainly because their trend is not as volatile as the above two types of funds, and only when the fluctuation is large can the cost be diluted.

The key of investment fund is to insist on long-term investment. Don't stop investing just because it is losing money, and don't want to redeem it just because it is making money. It is best to persist for more than five years (if you can continue to persist in these years).