Yes, the fund increased its position to reduce costs and risks, and the fund reduced its position to protect capital gains. Generally, adding positions during the period of fund decline can reduce costs. Investors can add positions in batches, such as adding positions once when the fund falls 10%, adding positions once when the fund continues to fall to 10%, and so on.

Generally, lightening positions in the process of fund rising can guarantee the income, and lightening positions is also carried out in batches. For example, when the fund's profit reaches 20%, the lightening position can be reduced by half first, and then reduced by half when the fund continues to rise, and so on until all the funds are sold.