Graded fund refers to the fund products that can be listed separately by dividing the common fund shares into two or more types of shares with different expected returns and risks through the structural design or arrangement within the fund. Generally divided into two kinds of shares. One is the part of income distribution with lower expected risk and income and lower priority, which is called low-risk income end (priority share); One is the part with high expected risk and income, and the second priority is to enjoy the income, which is called the high-risk income end (aggressive share). Please refer to the introduction of the fund contract for the specific class A share.