The U.S. Consumer Price Index (CPI) for September increased by 3% year-on-year, slightly below the expected 3.10% and up from the previous 2.90%. On a monthly basis, the seasonally adjusted CPI rose by 0.3%, also below the forecasted 0.40% and matching the previous month's increase. The core CPI, which excludes food and energy prices, also rose by 3% year-on-year, aligning with expectations but unchanged from the previous month. The seasonally adjusted core CPI increased by 0.2% month-on-month, falling short of the anticipated 0.30% and the prior month's 0.30% increase.