The scope of index fund tracking is different, and the market has gone up. You are talking about the Shanghai Stock Exchange, which finally struggled to turn red, so there are many index funds tracking the Shanghai Stock Exchange, such as the dividend ETF I bought.

And Shenzhen, have you found that it is still green, so the index funds tracking the Shenzhen market have fallen a lot.

As for the Shanghai and Shenzhen 300 180, there are both in Shanghai and Shenzhen, so it depends on whether the stock he bought has gone up or down, whether it is Shanghai or Shenzhen.

This is not a generalization.

There are many index funds, such as open-end, closed-end, ETF and LOF.