The stock reason can only be done in one direction, and it is difficult to launder money. But it is easier to launder money in a market that can be completed in a short time and in a long time. At present, money laundering through the futures market is more common in China. Securities and Futures Commission investigates futures money laundering. The principle of simple operation is to open multiple accounts, and at the same price, half of the funds are long and half are short, so that after opening the position, no matter how the price fluctuates, half of the accounts lose money and half of the accounts earn money, and the profit and loss accounts wash away money. There is a handling fee in the middle.