Futures is a contract to buy or sell a certain number of commodities/securities at a certain price at a certain time in the future. In this way, you can get some goods or cash flow in the future.

A futures company is actually a futures investment company, which buys and sells these futures to earn profits.

To be such a clerk, you need to have a good academic background and relevant practical experience, otherwise you have to rely on relationships.

It's a high-intelligence job, not a famous undergraduate course, so it's not considered.