ETFs can adjust positions. The trend set of ETFs is the same as the trend of the index. However, while tracking ETFs, fund managers may also invest in related component stocks. Therefore, ETF funds can adjust positions, but they will not be announced when the positions are adjusted.

, usually only the top ten holdings are announced.

Fund managers need to follow the fund's "Double Ten Agreement" when adjusting positions and exchanging shares, that is: a fund shall not hold more than 10% of the fund's assets in the same stock; all funds managed by the same fund manager in a fund company shall not hold more than 10% of the same stock.

10% of the stock’s market capitalization.