Anyone who plays with U.S. stocks knows that U.S. stocks have a mysterious "September curse."。The curse refers to the fact that in September, U.S. stocks usually underperform。In addition, some of the biggest disasters in U.S. economic history have largely occurred in September, including the terrorist attacks of September 11, 2001 and the bankruptcy of Lehman Brothers in September 2007.。Historical statistics, since 1928, the average decline of the S & P 500 in September was 1.1%, is the only average decline of more than 0.13% of the month。What is the reason for the emergence of the magic spell in September?？No one ever made it clear。There's a saying that every September, U.S. short sellers get in and launch capital attacks on higher-valued stocks, but that doesn't stand up to scrutiny either。Of course, U.S. stocks don't fall every September, and historically U.S. stocks have performed well in September。In the three years 2017-2019, the S & P 500 recorded gains in September.。Looking at this year, the September spell for U.S. stocks seems to be manifesting itself, and so far, the S & P 500 has fallen about 0 percent since September..5%。However, the market does not seem to be worried about the event, because after a series of weak data, the market has been convinced that the Fed will not continue to raise interest rates this month, which is undoubtedly good news for the market, because the suspension of interest rate hikes can ensure that the market has more liquidity, the greater the probability of hot money flowing into the U.S. stock market.。When market sentiment is pushed up, U.S. stocks are also likely to see a wave of gains。On the other hand, the stock market is a barometer of the economy, and the resilience of the U.S. economy is also supporting the U.S. stock market to some extent.。Last spring, with the Fed's aggressive rate hikes, many economists believed that the U.S. economy would gradually fall into recession.。But this year, bets on a U.S. recession have fallen significantly, which is another positive for U.S. stocks in September。