Fund? Shanghai and Shenzhen 300 is an index, and some passive funds trade according to the index. In other words, such funds do not actively choose stocks, but passively trade according to the Shanghai and Shenzhen 300, so the rise and fall are directly related to the Shanghai and Shenzhen 300 Index. The Shanghai and Shenzhen 300 index rose, and the fund also rose. Judging from the current market, such a fund is not bad.