FX.co ★ U.S. CPI Turns Negative in June, Marking Sharp Reversal in Monthly Price Momentum

U.S. consumer prices fell in June 2026, with the month-over-month Consumer Price Index (CPI) dropping to -0.4%, a notable reversal from May’s 0.5% increase. The data, updated on 14 July 2026, signal a sudden cooling in short-term inflation dynamics after a strong price rise in the previous month.

On a month-over-month basis, the latest reading shows that prices in June were lower than in May, whereas May’s figure reflected a solid acceleration from April. This shift from a 0.5% gain in May to a 0.4% decline in June suggests that demand, cost pressures, or both eased significantly within just one month.

Market participants and policymakers will now scrutinize the sustainability of this move. If June’s negative print proves more than a one-off adjustment, it could reshape expectations around the inflation path and influence the timing and aggressiveness of future Federal Reserve policy decisions.