US consumer prices declined 0.4% month-over-month in June, the first negative reading since 2000 and steepest drop since April 2020, per Bureau of Labor Statistics data released July 14, 2026. Energy prices plunged 5.7%, led by gasoline's 9.7% drop.

Core CPI was flat month-over-month, with food up 0.2% and shelter steady. Year-over-year headline inflation cooled to 3.5% from 4.2%, while core CPI rose 2.6% annually, still above the Fed's 2% target.

The disinflationary signal is heavily energy-dependent; the Federal Reserve focuses on core inflation. Energy volatility could reverse gains next month. Bitcoin and risk assets face elevated volatility as markets assess whether this marks a turning point or anomaly.