Because one of the most important benefits of investing in index funds is that when you are optimistic about a market, you don't have to worry about stock selection, just buy one. Investing in index passive funds is a good way to avoid "rat warehouse".

Of course, you can't expect to outperform the general trend by investing in index-based passive funds, but there will never be a situation where you win the index and don't win money. Take A shares as an example. In the first quarter of 2006, 183 equity funds, only 9 funds outperformed the Shanghai and Shenzhen 300 Index. Similarly, the fund performance in the first quarter of this year, the vast majority did not outperform the index. In the United States, statistics show that only 30% of funds with an investment cycle of 5 to 10 years outperform the index. Therefore, the use of computers as passive funds for traders and managers to track indexes is becoming more and more popular in mature overseas markets.

Another most important advantage of investing in index funds is that when you are optimistic about a market, you don't have to worry about stock selection, just buy one. Therefore, it is undoubtedly the most worry-free and effective for index funds to invest in the world, especially in unfamiliar or unfamiliar markets.