For example, there are too many corrupt officials in China. Many corrupt officials talk about serving the people during the day and making big money at night. They are worried that they will be jailed one day and transfer their wives, children and property overseas in advance. If you can, use your power to fish, if you can't, run. This is called risk hedging. In other words, it is called hedging to make two preparations in the opposite direction at the same time. You can buy up and buy down. This is called hedging. British Innsman, the world's largest listed hedge fund company, has a branch in Hong Kong, and AHL(Berkshire Hathaway), one of its flagship hedge funds, has been approved by the Hong Kong Securities Regulatory Commission to publicly offer and issue shares in Hong Kong. It has been selected as the preferred hedge fund in its investment-linked insurance by many branches of the world's top 500 international insurance giants in Hong Kong. Because hedge funds can be short, that is, they can buy down, AHL made a profit of 25% on its own in the background that almost all equity funds lost more than 30% in 2008, which fully explained the necessity of risk hedging.