10000 yuan fell by 20 points, leaving the principal of 8000 yuan. If it takes 8000 yuan to rise back to 10000 yuan, it is equivalent to an increase of 2000 yuan, and 2000÷8000=25%, which means it takes 25 points to recover the capital.

Index funds will never be as violent as stocks, and will always rise slowly. Choosing the right time to add positions in the process of decline can greatly reduce the cost, and then wait for the pattern to reverse and wait for the rise until it is profitable.

Extended data

10000 yuan fund fell by 2 points to explain the professional knowledge of adding positions;

1. It is difficult to return to the original price because of the deep drop. By covering the position, the stock price can close the position and leave without rising to the original high price. The risk is that although covering positions can dilute the cost price, the stock market is unpredictable and may continue to fall after covering positions, thus expanding losses.

2. Add a location. This method can only be used if the fundamentals support the variety to get out of the unilateral potential. If it is used in shock or reversal, it is often not worth the loss.