Buying a fund depends on the trend of the index it tracks. For example, E Fund's Growth Enterprise Market ETF is connected to A( 1 10026), and its target is the Growth Enterprise Market Index. Investors can analyze its ups and downs through the trend of the Growth Enterprise Market Index.

For those stock funds, investors can analyze the rise and fall of the fund according to the trend of the stocks they invest in, that is, when the investors' stocks show an upward trend, the fund will rise accordingly, and when the stocks show a downward trend, the fund will fall accordingly.