The general transaction commission is 0. 1%-0.3% (there are few online transactions, and the business department can negotiate), and the stamp duty is 0.3% (funds and warrants are tax-free), with transfer fees 1 yuan per thousand shares in Shanghai. Less than 1000 shares, minimum commission 5 yuan.

As the minimum commission is 5 yuan, it is more economical to pay (1666-5000) yuan per transaction.

The trading unit is 100 shares (first hand), and there is no limit to selling (it can be 1 share), but the minimum commission should be paid attention to.

Due to different transaction commissions, transaction costs are also different. Generally, after buying a stock, the price rises by more than 1.2 1% and it is sold, so you make money.

If the commission is 0.3% and the stamp duty is 0.3%, the calculation process is as follows:

Let the buying price be 10.99 yuan and the selling price be10.99× (1+1%) =1/23 yuan.

Gross profit: (11.123-10.99) × 500 = 66.5 yuan;

Cost: (10.99+1.123) × 500× (0.3%+0.3%) = 66.34 yuan.

66.50 yuan is more than 66.34 yuan, which basically guarantees the principal. (without considering the transfer fee)

The handling fee of the stock is about 1. 1% of the purchase price.

For example, the stock 10.99 yuan/share, and the handling fee is 0. 12 yuan.

When it rises to 10. 12 yuan, it is the guaranteed reserve price.

If you go up again, you will make money.

10.99 *1.012 =11.12 yuan.

The handling fee is 1.2%