Published by noon (ET) on the day of the CPI release, the sticky price index sorts the components of the consumer price index (CPI) into either flexible or sticky (slow to change) categories based on the frequency of their price adjustment.
The Atlanta Fed's sticky-price consumer price index (CPI)—a weighted basket of items that change price relatively slowly—rose 0.4 percent (annualized) in August, following a 1.3 percent gain in July. The 12-month change in the index was 2.0 percent.
On a core basis (excluding food and energy), the sticky price index went unchanged in August, and the 12-month index was 2.0 percent.
The flexible cut of the CPI—a weighted basket of items that change price relatively frequently—declined at an 8.6 percent annualized rate in August. The flexible CPI is now 1.2 percent above year-ago levels.
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Source: Federal Reserve Bank of Atlanta
Core Sticky CPI
Core Flexible CPI