A market braced for hawkish surprises got the opposite. Last week's inflation data — both CPI and PPI — failed to build a case for a September Fed rate hike, and markets wasted no time repricing accordingly, pushing expectations for the next increase out to early 2027. Sage Advisory's Komson Silapchai and Thomas Urano parse what the numbers actually said, and — more pointedly — what markets chose not to hear, in their latest Notes from the Desk at Sage Advisory1.
What the CPI Said
aThe headline CPI print was in line with consensus. Headline eased to 3.4% from 3.5%, while core fell to 2.5% from 2.6%. Monthly increases remained subdued, at 0.1% and 0.2% respectively. Shelter was the standout contributor, rising just 0.1% on the month — yet still accounting for two-thirds of the monthly advance, simply because so little else moved. Silapchai and Urano note that "shelter rose only 0.1%, yet still contributed two-thirds of the monthly increase because so little else advanced." That framing matters: the apparent dominance of shelter in the print was a function of broad softness, not of shelter-specific acceleration.
Where PPI Complicated the Picture
The PPI release did nothing to disturb the narrative the CPI had already established. Headline PPI was flat on the month. The year-over-year rate fell sharply, to 4.7% from 5.5%. But Silapchai and Urano flag one component that, under normal circumstances, would have warranted attention: core services PPI reaccelerated after a negligible June, driven by a 6.5% jump in portfolio management fees.
The significance of that number lies not in its size but in its linkage. As the authors explain, "because this category feeds into PCE inflation, a measure closely watched by the FOMC, it might ordinarily have raised concerns about future inflation pressure." PCE is the Fed's preferred inflation gauge. A sharp move in a component that feeds directly into PCE, in ordinary times, is not the kind of thing a committee focused on inflation would set aside.
Why Markets Looked Through It
This time, markets did look through it — and for a specific structural reason. Silapchai and Urano explain the mechanics: "the PPI index treats an increase in assets under management driven by rising markets as a price increase, so an equity rally mechanically shows up as fee inflation." The 6.5% jump in portfolio management fees, in other words, was not a signal of genuine price pressure in the economy. It was an artifact of rising equity markets flowing through a methodology that conflates asset appreciation with fee pricing.
That methodology is about to change. Beginning with the September 30 annual update — and applied retroactively — the BEA will stop tying portfolio management fees in PCE to assets under management, shifting instead to a wage-growth-based measure. Estimates suggest the change could lower measured core PCE inflation by roughly 0.2 percentage points.
The implication is significant. Markets largely dismissed the portfolio management spike because, as Silapchai and Urano put it, "the FOMC is unlikely to place much weight on a category that is about to be redefined." That reading contributed directly to the week's broader less-hawkish repricing.
The Larger Insight
The episode surfaces a durable tension in how inflation is measured and interpreted. Not all inflation components carry equal weight — and their weight can change, sometimes retroactively. The portfolio management fee category was a live input to PCE, influencing how the FOMC might read price pressure, until a methodological decision made it effectively inert in real time. Markets, to their credit, saw through the noise. Whether they will always do so as cleanly is a different question.
To be clear, the broader inflation picture remains constructive relative to where it was. Headline and core CPI are easing, PPI is falling, and shelter — the most persistent contributor — is decelerating. The Fed's September meeting appears settled. The path of least resistance runs toward 2027 before the next move higher.
5 Key Takeaways for Advisors and Investors
1. September is off the table. Neither CPI nor PPI gave the Fed cause to act. Rate hike expectations have shifted to early 2027 — a materially less restrictive backdrop for fixed income positioning.
2. Shelter's dominance in CPI is a reflection of broad softness, not shelter strength. A component does not need to surge to dominate a print; it only needs everything else to stall. That distinction matters for reading the underlying trajectory.
3. PCE has a methodology overhang. The BEA's forthcoming change to how portfolio management fees are measured in PCE will mechanically reduce reported core PCE by an estimated 0.2 percentage points. Advisors should factor this into their inflation frameworks ahead of the September update.
4. Market structure can distort inflation signals. The 6.5% jump in PPI portfolio management fees was not economic inflation — it was equity price appreciation flowing through a flawed measurement convention. Knowing the difference is an analytical edge.
5. The FOMC reads context, not just numbers. Markets correctly judged that the committee would not react to a component it already knew was being redefined. Understanding how the Fed weighs inputs — not just what those inputs show — is increasingly central to fixed income strategy.
Footnote:
1 Silapchai, Komson, and Thomas Urano. "The Inflation Component Markets Chose to Ignore." Sage Advisory Notes from the Desk, 17 Aug. 2026, https://www.sageadvisory.com/article/the-inflation-component-markets-chose-to-ignore.
