Simulated stock trading is all about trading with virtual funds, and no real cash transaction is needed. Accounts are simulated accounts, and funds are also virtual currency. Therefore, of course, the money earned can't be refunded, and of course you don't have to make up for the losses yourself.

Virtual funds used to simulate stock trading cannot be extracted. If you take part in the simulated stock trading competition, the winner will get a little bonus. According to the regulations of the organizer, some of them can get cash rewards.