From the perspective of investment, short selling refers to a way of operating financial assets. Contrary to bulls, bears borrow the underlying assets first, then sell them to get cash. After a period of time, they spend cash to buy the underlying assets and return them. The common functions of shorting are speculation, financing and hedging.

Its trading behavior is characterized by selling first and then buying. This model can make a profit in the band of falling prices, that is, borrow goods at a high level and sell them first, and then buy them back after falling.

Then, in the gold investment and trading market, if investors judge that the price of gold will continue to fall in the future according to the overall development trend of the market, they can enter the warehouse by selling when the price remains relatively high, and then buy and close the position when the price falls to the ideal price, which can also realize the profit essence of selling high and buying low, so as to obtain their own investment income.