Personal Consumption Expenditures (PCE) Explained

The Personal Consumption Expenditures price index is the Federal Reserve's preferred inflation measure. While CPI gets more media attention, PCE is the data point the Fed actually targets at 2%, making it arguably more important for monetary policy and asset prices than the more widely reported CPI.

What it measures

PCE is calculated by the Bureau of Economic Analysis (BEA) as part of the personal income and outlays report. It measures the prices that consumers actually pay for goods and services, derived from data on personal spending across the economy.

The headline PCE includes all consumer spending. Core PCE excludes food and energy, providing the cleaner underlying signal that the Fed prioritizes.

PCE differs from CPI in several methodological ways:

• Weighting basis: PCE uses spending data from the GDP accounts (broader). CPI uses household surveys (narrower scope).
• Coverage: PCE includes spending paid on consumers' behalf (employer-provided healthcare, government healthcare for seniors). CPI covers only out-of-pocket consumer spending.
• Substitution effects: PCE adjusts for consumers shifting to cheaper alternatives when prices change. CPI uses fixed weights longer.
• Housing measurement: PCE uses different methodology for measuring shelter costs.

Because of these differences, PCE typically runs 0.3-0.5 percentage points below CPI. When CPI is at 3%, PCE is often at 2.5-2.7%. The gap can widen or narrow based on what's driving inflation.

PCE is published monthly, typically about a week after the equivalent CPI release.

How to use it in practice

The Fed uses core PCE as its primary inflation gauge for several reasons:

• Broader coverage captures more economic reality than CPI's narrower scope.
• Substitution adjustments better reflect actual consumer behavior.
• More stable less affected by month-to-month volatility in specific items.
• Continuous weight updates more current than CPI's slower updating.

For Fed policy, the year-over-year change in core PCE is the focal metric. The 2% target applies specifically to PCE, not CPI. When commentators say "inflation is at the Fed's target," they're typically referring to PCE.

The 2021-2024 inflation cycle illustrates PCE dynamics:

• 2021: Core PCE accelerated from sub-2% to above 5% during the year.
• 2022: Core PCE peaked at approximately 5.4% in February 2022.
• 2023-2024: Core PCE declined gradually toward target, reaching the 2.5-3.0% range.
• 2024-2025: The "last mile" toward 2% proved sticky, as it typically does.

The components of PCE reveal what's driving inflation:

• Goods PCE: Often more cyclical, can deflate during weakness.
• Services PCE: Stickier than goods, key to the Fed's "supercore" focus.
• Housing PCE: Reflects shelter costs, large component.
• Healthcare PCE: Often slow-moving but persistent.

The Fed has increasingly focused on "supercore" PCE (services excluding housing and energy services) as the cleanest measure of underlying inflation. Supercore PCE captures the labor-market-sensitive components most relevant to wage-driven inflation pressures.

For asset positioning, PCE matters because:

• Fed reactions to PCE drive monetary policy expectations.
• Real yields are typically calculated using PCE rather than CPI for some longer-term analysis.
• Long-term inflation expectations in markets typically reference PCE-equivalent measures.
• Pricing of inflation hedges ($TIP, gold, commodities) responds to expected Fed reaction function.

When PCE prints differ from CPI in direction or magnitude, markets typically respond more to PCE because of its Fed relevance. A CPI surprise that doesn't show up in PCE the following week often unwinds market reactions to the initial CPI print.

Common mistakes

Conflating CPI and PCE. They're correlated but distinct. CPI affects Social Security adjustments and TIPS calculations; PCE drives Fed policy. Both matter for different reasons.

Ignoring core vs headline distinction. Headline PCE moves with food and energy volatility. Core PCE is the policy-relevant measure. Always distinguish.

Watching only year-over-year changes. Sequential PCE momentum (3-month or 6-month annualized rates) often signals trend changes earlier than year-over-year figures.

Treating PCE as identical to consumer experience. PCE includes spending paid by employers and government. Individual out-of-pocket inflation experience varies significantly.

ACCE perspective

PCE isn't directly in our scoring system, but it's the most important macro input for understanding Fed policy direction. Our weekly digest includes PCE commentary alongside CPI, with particular attention to the divergences between the two and the implications for Fed reaction function.

For investors building portfolios, PCE matters as the regime indicator that drives Fed policy more than CPI does. Watching PCE alongside Fed communications provides clearer signal about likely policy direction than focusing on CPI alone.