Graded funds, that is, leveraged funds, are generally risky, while Class A funds are not risky. When they issue it, they will agree to the annual interest rate. The specific interest rate of each graded fund is different. Class B funds generally invest in high-risk assets with high risks and high returns. Class b funds borrow money from class a funds and pay interest to class a fund holders every year, so that class b funds can invest more money in high-risk investments and the stock market will pick up. Class B funds will greatly surpass the stock index gains and gain more income. Similarly, if the stock market plummets, Class B funds will fall even worse than stocks, and it is normal to fall by 10% a day. Therefore, the investment risk of graded funds is higher and the entry threshold is higher. The management now strictly restricts the issuance. Many graded funds are in transition. It is better for retail investors of graded funds not to touch them. Personal learning and summary are not necessarily accurate, and investment risks need to be cautious.