Core PCE inflation slowed to 3.0% in August, giving Wall Street the relief it had been waiting for after a punishing rise in Treasury yields through September. The softer-than-expected reading helped push the S&P 500, Nasdaq and Dow higher as traders cut the odds of an immediate Federal Reserve rate increase.
The market reaction was swift because core PCE is the inflation gauge most closely watched by the Fed. With the annual rate falling from 3.3% in July and coming in below the 3.3% consensus, investors moved quickly to price in a less aggressive policy path.
That shift mattered across asset classes. Treasury yields pulled back from multi-year highs, technology shares outperformed, and rate-sensitive areas stabilized, even as oil prices and consumer strain continued to complicate the inflation outlook.
Key Facts
- August core PCE rose 0.2% month over month and 3.0% year over year, below forecasts of 0.3% and 3.3%.
- Headline PCE increased 0.3% on the month and 3.4% annually, compared with a 3.7% market expectation for the yearly figure.
- By mid-morning, the Nasdaq Composite was up 0.96%, the S&P 500 gained 0.56%, and the Dow Jones Industrial Average added 0.14%.
- The 2-year Treasury yield fell to 4.827%, while the 10-year yield dropped to 5.217% after touching 5.29% in the prior session.
- Rate futures reduced the implied probability of an October Fed hike to 37%, down sharply from above 70% earlier in the week.
Core PCE Inflation
The August core PCE report delivered the single most important macro signal for markets at the end of the quarter: underlying inflation cooled more than expected. Because core PCE strips out food and energy, it is viewed as a clearer measure of persistent price pressure. A 3.0% annual rate remains above the Fed’s 2% target, but the downside surprise was enough to ease fears that policymakers would need to tighten again immediately.
That mattered especially because markets had spent much of September adjusting to higher-for-longer rates. The 10-year Treasury yield had surged 82 basis points during the quarter, its biggest jump in four years, while the 30-year yield climbed to levels last seen in 2002. Equities, particularly growth stocks, had struggled under the weight of rising discount rates. Once yields moved lower after the PCE release, the pressure on valuations eased and the Nasdaq led the rebound.
The data were not entirely benign. Consumer spending remained strong in August, while the savings rate fell to its lowest level since late 2022. Energy prices also rose 2.3% during the month, helping keep headline inflation elevated. For investors, the takeaway is that inflation is cooling, but not cleanly. The Fed may have more room to wait, yet it cannot declare victory while oil remains above $90 a barrel and household finances look increasingly stretched.
Core PCE at 3.0% gave markets relief, but it did not end the debate over how long U.S. rates will stay high.
Treasury yields and the market’s relief trade
The bond market explained the equity rally. The front end of the curve, which is most sensitive to Fed expectations, rallied hardest after the data. The 2-year yield fell by more than 6 basis points, signaling that traders see less urgency for an October hike. The 10-year yield also retreated, though more modestly, reflecting the fact that long-term borrowing costs are being driven not only by inflation data but also by heavy Treasury issuance, rising term premium and elevated oil prices.
This distinction is important for stocks. If long-dated yields resume their climb toward recent highs, pressure on equity multiples could quickly return. A one-day inflation surprise can improve sentiment, but it does not resolve the structural forces pushing bond yields higher.
Implications for Investors
For portfolios, the softer core PCE reading supports the case for selective risk-taking, particularly in rate-sensitive growth sectors that had been hit by September’s bond selloff. Large-cap technology names benefited first because lower yields mechanically improve the present value of future earnings. That helps explain why the Nasdaq outperformed the Dow after the report.
Even so, investors should avoid reading too much into a single data point. Oil remains a major wild card, with West Texas Intermediate trading around $90.75 a barrel and geopolitical risks still influencing energy markets. If higher fuel costs feed back into transportation, goods and inflation expectations, the Fed could regain a hawkish posture quickly. The September payrolls report and upcoming CPI data will be critical tests of whether the pause narrative can hold.
There is also a growing split within the consumer economy. Strong spending has supported corporate revenue, but the lower savings rate, rising mortgage costs and uneven discretionary demand suggest that not all households are absorbing higher rates equally well. Investors may want to favor businesses with stronger pricing power, resilient balance sheets and exposure to durable capital spending trends rather than broad consumer weakness.
The market’s next move will depend on whether cooling core inflation can continue without a renewed shock from jobs, wages or energy. For now, August core PCE has bought equities some breathing room, but the path into the next Fed decision remains highly data-dependent.