According to the new rules of graded funds, it is necessary to open the trading authority of graded funds. The 20-day average fund (including the stock market value) reached 300,000. After the opening up, it will cost at least 50,000 yuan to purchase the graded parent fund. Generally speaking, the profit is above 2%, and the arbitrage opportunity is fleeting. Once there is an arbitrage opportunity, there will be countless funds pouring into the premium, so it is better to buy wealth management.