1、Why Need to Short ?The market is more pessimistic about the general market expectations.The CPI has soared to 8.6%. CPI, PPI and other inflation indicators have broken through historical extremes, which is a huge uncertainty for the market.Continued upward inflation has put increasing pressure on the FED to raise interest rates, and the end rate expectation for the current round of rate hikes has risen from about 2.25% at the beginning of the year to the current 3.25% to 4.0%. And behind the interest rate hike, there are growing fears of a recession in the United States.According to statistics, there have been 19 times since the world war II when the S&P 500 has fallen more than 15% at a time. Among them, the combination of economic downturn + Fed rate h