There are two ways. The first is to download a quick money APP into my account and click on the quick money temperature to see if the corresponding index fund is undervalued or overvalued. The other is that you add the corresponding fund to the fund of my choice in Alipay. If this fund is undervalued, Alipay will prompt you on the fund channel or the fund details page, prompting you whether this fund is undervalued or overvalued.