"Short selling" means that investors expect the precious metal market to fall in the future, first sell precious metal products at a high price on the precious metal trading platform, and then close their positions when they fall, that is, buy them back at a low price, so as to earn the difference and win profits. Short for selling at a high price and buying back at a low price. After deciding to short, investors can combine "instant trading" or "pending order trading" according to the precious metal market and the trend of K-line chart.