First of all, you have to understand why it is frequently opened or closed. The main reason is that domestic futures basically follow the international futures market (most products). Of course, when we stop trading, if there is a big price fluctuation on the day when they stop trading, it will reflect whether our domestic market is high or low. Now, why do we do day trading? There is a simple reason. There are several varieties that fluctuate greatly in the day, such as the current threaded sugar, and so on. It is normal for 100 points to fluctuate up and down, as long as you see the trend clearly and grasp 20-30 points. Zooming in, it's just a hand. Five hands is five times the profit. In futures, you must have a lot of money, or a low position in the medium and long term, otherwise it is easy to be washed. Novices are advised to watch more and do less intraday trading to sum up their experience (reminder: stop loss orders must be made when trading).