I don't really recommend you to play with contracts, unless you are poor, after all, there is no way to be poorer. My good friend shorted GODE in this round of MEME market and lost 20 million RMB. The reason why contracts hurt people is that when you lose money, you think the number is small, but it is magnified 7.2 times in life. 10u may not seem like much, but it is actually the daily living expenses of many people. But 10u is not even enough for our handling fee.

Cherish your life and stay away from contracts, whether you are a professional analyst or not.