Which index fund is better? At present, there are more and more index funds in the market, and it is more and more difficult to choose index funds. Investors should pay attention to two points when choosing index funds: on the one hand, it is as difficult to find such an index as to choose stocks; On the other hand, choose index funds with smaller tracking error. The smaller the tracking error of the fund, the stronger the management ability of the fund manager, and the more investors can achieve the goal of obtaining the expected annualized rate of return of the index. First of all, find a suitable underlying index: because passive index funds follow the index strictly according to the contract, the annualized return characteristics of the underlying index reflect the annualized return characteristics of the fund's risk expectation. Investors should choose an index fund with appropriate underlying index according to their risk tolerance and risk preference. As for which index is better in stages, people have different opinions. There may be differences in the performance of different types of indexes at different stages, and this difference is also difficult for investors to grasp. This is why even Buffett has been advising investors to invest in broad-based index funds such as the Standard & Poor's 500 Index. Generally speaking, ordinary investors can choose a broad-based index with wide coverage, and experienced investors can choose the index according to their own situation and staged market conditions. In the long run, index funds are definitely not the best, but they are definitely better. If the fixed investment time is long enough, such as 20 years, there are few active management foundations that can outperform index funds, which is determined by the quality of fund managers in China. Among the fund managers in China with low overall level, Rainbow Yahweh, a great person, is a minority after all. If the Chinese market is replaced by other fund managers after three to five years, it is still uncertain whether it can maintain the current level.