The core CPI increase in April in the United States met expectations. Is the September interest rate cut stable? The core CPI increased by 3.6% year-on-year in April, a decrease of 0.2 percentage points from the previous value of 3.8%, which will slightly reduce concerns about the re acceleration of inflation. Traders bet that the probability of a rate cut in September is 69.6%, and the probability of maintaining interest rates unchanged is 30.4%.