Investors can judge the quality of a fund from five aspects: historical performance, maximum retracement, Morningstar rating, Sharp ratio and fund manager.

1, historical performance: funds with high historical performance are good, and funds with low historical performance are not good.

2. Maximum retracement: the fund with low maximum retracement is good, and the fund with high maximum retracement is not good.

3. Morningstar rating: funds with high Morningstar rating are better, and funds with low Morningstar rating are not good.

4. Sharp ratio: the fund with a large Sharp ratio is good, and the fund with a small Sharp ratio is not good.

5. Fund managers: funds managed by star fund managers are better, while non-star fund managers or funds with low investment level are not good.