1. Stock transaction fee: The stock transaction fee of the straight flush is 2.5 million yuan, accounting for 0.025% of the transaction amount. Among them, the lowest charge is 5 yuan.
2. Fund transaction fee: The fund transaction fee for the straight flush is 0 yuan, that is, the fund transaction fee is free.
3. Interest on margin financing and securities lending: If users make margin financing and securities lending through a straight flush, they need to pay the corresponding interest on margin financing and securities lending. The interest expense of the flush margin is 6.46% per year.