There is no record of hedging transactions in China, and their trading strategies and techniques are very different from those of domestic funds. Since foreign stock markets, foreign exchange markets, commodities and futures markets all implement two-way trading, these hedges generally design trading models and make a lot of high-frequency trading in many markets to make profits. Instead of judging trends as in China, it is difficult to track their transaction records, and it is basically impossible to find them without special channels. Even if it is discovered, it is difficult to copy this trading method, and it is unrealistic to track these transactions and make a profit.