Friday's CPI inflation report is even more important than usual. Here's what to expect

• Markets are pricing in over 73% probability of a quarter-point rate hike at the September FOMC meeting, according to CME Group futures prices
• The CPI data is crucial because a majority of the Fed's preferred PCE inflation gauge components are derived from CPI measurements
• September's surge in energy prices is expected to tip the balance toward a rate hike, though the final CPI report could still influence the decision

Summary

The Bureau of Labor Statistics is set to release the August Consumer Price Index (CPI) report Friday at 8:30 a.m., representing the final inflation data point before the Federal Reserve's interest rate decision next week. This report carries heightened significance as it will directly influence the Federal Open Market Committee's (FOMC) meeting scheduled for Wednesday.

Key Expectations:

• Headline CPI: +0.4% monthly, 3.4% annually (Dow Jones consensus)
• Core CPI (excluding food and energy): +0.2% monthly, 2.4% annually

Market Implications:

Following Thursday's Producer Price Index (PPI) release, traders have priced in a greater than 73% probability of a quarter-point rate hike, according to CME Group futures. Market expectations remain volatile and highly data-dependent, particularly given fluctuating energy prices.

Nomura economists emphasized that "the September FOMC decision ultimately hinges on the CPI data" since most Personal Consumption Expenditures (PCE) components—the Fed's preferred inflation gauge—are derived from CPI. The PCE report won't be available until late September, making Friday's CPI release critical.

Key Factors:

• Fed Chair has indicated reliance on market indicators for monetary policy direction
• September's surge in energy prices is expected to favor a rate hike
• Current base case: No rate hike in September, though stronger-than-expected CPI could change this outlook

Bill Adams of Fifth Third Commercial Bank notes the decision "looked finely balanced" but recent energy price increases may tip the Fed toward hiking rates, making this one of the most consequential CPI reports of the year.