Bank speculation charges are very high. I have always suspected that the bank is gambling, or it may be that the bank throws your trading instructions to the relevant exchange as a commission, but the bank charges well, but there is no doubt that I have done it myself, which is suitable for long-term investment. Safe. If you want to speculate, it is best to have the innermost futures, Shanghai Gold and Shanghai Bank Shanghai Futures Exchange, as well as the crude oil that will be listed soon. Soochow futures are worth choosing.