How about the work of American stock traders?

I once tried a trader of an investment company in an office building. The office is very crowded, and several rooms are full of laptops. The general manager is a very young man. It seems that in 1983, 1984, he used his own money (thousands of dollars) to enter an operating account and the company trained for three days. Then he felt that his operation was very irregular and even more outrageous than that of the insurance company. Except for traders of some well-known financial companies and banks, it is basically a fraud company.