U.S. Core PCE Projection Signals Sticky Services Inflation and Material Upside Risks

Core Conclusion

The March core PCE forecast has been revised up marginally to 0.23% month-over-month, but the more critical signal is the expected reacceleration of the annual rate to 3.12% from 2.99%. Market attention is misallocated towards the trivial 2bp monthly adjustment, overlooking entrenched service-sector price pressures and a meaningful risk that the actual print could be significantly higher due to data compilation choices.

Evidence Chain

Core inflation's disinflationary momentum has stalled. The year-over-year core PCE rate is forecast to rise to 3.12% in March, marking a clear reversal from February's 2.99%. While the 3-month annualized rate decelerated from 4.52% to 4.11%, the 6-month annualized rate increased from 3.46% to 3.54%, indicating fading downward momentum and signaling that the path to the Fed's 2% target has plateaued.

Stubborn service inflation, led by financial and healthcare costs, is the primary driver. Core services inflation is projected at 3.23% year-over-year, materially higher than core goods at 2.79%. The post-PPI forecast revision was almost entirely due to upward adjustments in financial services and insurance (+0.02ppt contribution) and healthcare services (+0.02ppt), underscoring the non-transitory nature of price pressures in these sectors. Core services ex-housing remains elevated at a 3.30% annual rate.

Official data sourcing methodology introduces material upside risk. The benchmark forecast of 0.23% uses CPI data for legal services. If the BEA instead uses the PPI legal services data—as it did in January—the March core PCE print could be as high as 0.27% month-over-month. This 4bp data-source risk is more consequential than the 2bp post-PPI forecast revision and suggests a systematic potential for underestimation in real-time analysis.

Key Risks & Macro Transmission

The primary risk is the dependency on which data series (CPI vs. PPI) the BEA uses for key components like legal services, creating unpredictable volatility around the consensus forecast. A sustained inflation overshoot above 3% validates a "higher-for-longer" Fed policy stance, increasing the probability of overtightening and a subsequent hard landing for the economy. This scenario would compress equity multiples, particularly for rate-sensitive sectors.

Valuation and Trading Implications

A core PCE print at or above the 0.27% risk scenario would immediately reinforce restrictive monetary policy expectations. This is bearish for long-duration growth equities and fixed income, while supporting the U.S. dollar. Short-term inflation breakevens (e.g., TIPS, inflation swaps) appear to underprice the upside risk from sticky core services and potential data source surprises. Portfolios should favor quality and reduce interest rate sensitivity.

Appendix Data Summary

Exhibit 1: Key PCE Forecast Components (March)

Exhibit 2: Post-PPI Forecast Revision Drivers