1. The difference between spot and futures: First, the trading hours are different. Spots generally have 22 hours of trading, while futures only have 9 hours of trading. Second, futures have price limits, but spot prices do not.

2. Domestic futures are not in line with international standards. International futures trading time periods are different, while spot prices are in line with international standards. The margin of spot is lower than that of futures.

3. Futures are a contract system, which means delivery at maturity. There is a contract expiration date, which stipulates that delivery must be made at maturity. There is no spot. As long as the account has enough funds, you can always hold it.