If the fund falls for 7 consecutive days, investors can consider buying some, and investors can buy them in the following ways:

1, equal purchase method

Investors can choose to buy the same amount every time when the fund falls sharply, such as 1000 yuan every time.

2. Equal difference purchase method

During the decline of the fund's net value, investors buy the same amount every time. For example, investors buy three times, and the amount of each purchase is 1000 yuan, 2,000 yuan and 3,000 yuan respectively.

3. Equal proportion purchase method

During the decline of the fund's net value, investors buy the same amount every time. For example, the amount that investors buy each time is 1000 yuan, 2,000 yuan and 4,000 yuan respectively.