1. The reason why the fund fell 100% on the day of ex-rights and ex-dividend is that the fund dividends have been received and will not come back naturally.

2. Fund dividends means that the fund distributes part of its income to fund investors in cash. This part of the income is originally part of the net value of the fund unit.

What people usually call funds mainly refers to securities investment funds.

There are three main analysis methods for securities investment: basic analysis, technical analysis, and evolutionary analysis. Basic analysis is mainly used in the selection of investment targets, while technical analysis and evolutionary analysis are mainly used in time and space judgments of specific investment operations.

as an important supplement to improve the validity and reliability of investment analysis.

3. Ex-rights day (ex-dividend date): The first day after the equity registration date is the ex-rights day or ex-dividend date. Shareholders who purchase the company's shares on or after this day will no longer enjoy the company's dividends and allotments.

The ex-rights date is when the total number of shares that can be circulated in the market increases after the shares are transferred or distributed, then the original market price must be ex-rights.

Otherwise it would be unfair to those who later buy the stock.

For the same total market capitalization, the number of shares has increased, but the price has not fallen.