📊 Trimmed Mean PCE Inflation Rate (Dallas Fed)

To: Institutional Clients

From: Global Economics Strategy Team

Date: September 2026

Subject: Trimmed Mean PCE Analysis: Disinflationary Momentum Re-establishes

1. Executive Summary

The latest Dallas Fed Trimmed Mean PCE data confirms a decisive return to the disinflationary path, with the 12-month rate printing at 2.19% in August 2026. After a period of volatility and a mid-2026 plateau, the current print suggests that the "last mile" of inflation reduction is regaining momentum, moving the needle closer to the Federal Reserve's 2% symmetric target.

The overall tone is one of cautious optimism. The convergence of the 1-month and 12-month metrics suggests that the inflationary spikes observed in Q2 2026 (where 1-month prints peaked at 3.20%) have been fully absorbed and neutralized. Policy signals are shifting from "restrictive maintenance" toward "normalization."

2. Five Main Views

• Consistent Downward Trajectory: The 12-month trimmed mean has declined from 2.85% (Aug '25) to 2.19% (Aug '26), representing a 66bps contraction over the trailing year.
• Volatility Compression: The 1-month print has stabilized at 1.92% in August, a significant cooling from the 3.01%–3.20% range seen in April/May 2026.
• Target Convergence: At 2.19%, the 12-month rate is now within 19bps of the Fed's 2% target, significantly reducing the risk of a secondary inflation wave.
• Regime Normalization: With a Z-score of -0.44$\sigma$ (12M) and -0.61$\sigma$ (1M), inflation is no longer in "extreme" territory, sitting near the 10-year median.
• Momentum Shift: The sequential drop from 2.28% (July) to 2.19% (August) indicates that the disinflationary trend is accelerating again after a three-month period of stagnation.

3. Macro Characterization

(i) Growth: While PCE is a price index, the steady decline in trimmed mean inflation—which strips out volatile outliers—suggests a cooling of aggregate demand. The absence of price stickiness in the most recent prints implies that growth is likely moderating toward a sustainable trend rather than overheating.

(ii) Labor Market: The data suggests a softening of the wage-price spiral. The transition of 1-month PCE from >3% in Q2 to <2% in Q3 indicates that service-sector pricing power is waning, likely reflecting a more balanced labor market with diminishing nominal wage pressure.

(iii) Inflation: Inflation is characterized by a successful "mean reversion." We have moved from a period of high volatility (1-month range of 1.52% to 3.20%) to a period of stability. The 12-month trend is now firmly anchored, moving from the 50th percentile of the 10-year range toward the lower half.

4. Cyclical Alignment

Based on the provided Z-scores (-0.44$\sigma$ for 12M; -0.61$\sigma$ for 1M) and the 50th percentile ranking, the current regime is classified as a 'mid-cycle' pause.

We are not seeing the extreme positive Z-scores (>2.0) associated with late-cycle overheating, nor the extreme negative Z-scores associated with a structural regime shift or deflationary shock. Instead, the data describes a "normalization phase" where inflation is returning to its long-term historical average, suggesting the economy is transitioning from a restrictive environment to a neutral one.

5. Policy Outlook

Forecast: 25bps Rate Cut | Timing: Next FOMC Meeting

The balance of risks has shifted decisively toward the downside. With the 12-month trimmed mean PCE at 2.19% and the 1-month print stabilizing below 2%, the Fed no longer needs to maintain a "maximum restriction" stance to combat inflation. The primary risk is now "over-tightening" and inducing an unnecessary slowdown. Given that inflation is now hovering just above target and the cyclical regime is in a mid-cycle pause, we expect the Fed to initiate a normalization cycle with a 25bps cut to align the federal funds rate with the neutral rate.