If they are exponential, it is easy to judge. They almost follow the index of the stock market. When the index goes up, it goes up, and when the index goes down, it goes down. This is only a theoretical judgment, and there will be differences in practice.
If it is a non-index stock fund, it depends on their shareholding type. Some funds have heavy positions in blue-chip stocks. When blue-chip stocks go up, they will go up, while blue-chip stocks will go down. Some funds hold small and medium-sized board stocks, so when small and medium-sized board stocks go up, they go up, and vice versa.
The above judgment is the judgment method of these equity funds when the stock market trend is clear (unilateral rise or unilateral decline). Once the direction of the stock market is unknown, it is difficult to judge their ups and downs.
There are also some money funds and bond funds, and their ups and downs are related to the ups and downs of the invested currencies and bonds!
Generally speaking, the trend of most funds is the same as that of the stock market, and the specific rise and fall should be judged according to its net value!
You can log on to "Cool Fund Network" to inquire about the percentage of ups and downs in a single day, every week, every month, every quarter, in the past year or even since the establishment of the fund!