hello! Generally, when the stock price rises and the market index is on the upward trend; However, when the stock price falls, the downward trend of the market index will not change in the short term. Simply put, it is to increase the position when the stock market rises and reduce the position when the stock market falls. The strategy related to this is short-term operation, chasing up and killing down! When to add positions and when to reduce positions, and the reasons can be seen in the research column of Zhonglu on the fund trading online. Personally, I feel good.