Class A funds are suitable for long-term holding, while Class C funds are suitable for short-term holding. Tian hong heng sheng's science and technology index a and c are different. Class A funds are suitable for long-term holding, while Class C funds are suitable for short-term holding. The AC position income of the same fund is the same, but the difference is the handling fee. Class A funds are suitable for long-term holding, while Class C funds are suitable for short-term holding. Holding Class C funds for 2 19 days will cost more than Class A funds, so I plan to hold funds for more than half a year to buy Class A funds, and buy Class C funds for less than half a year.