I know where the coal is. I have been in finance for so long that I have never heard of anyone who makes money. His handling fee is very high, about 3 points. The daily market is generally 10, with a maximum of 30 points. At least one day, even the handling fee can't come out. It's not easy to make long calls, and the company also requires short calls, hundreds of hands a day. In this way, a genius who has not lost money within 1 month is a genius.