• Chicago Fed President Austan Goolsbee called September's CPI report "discouraging," particularly citing a troubling acceleration in services inflation.
  • He cautioned against overreacting to a single data point, advocating for a "steady hand" and focusing on the longer-term trend.
  • Market-implied odds of a rate hike at the Fed's October meeting jumped to around 40% following the release, up from roughly 22% before.

Inflation Surprise Clouds Policy Outlook

The latest U.S. inflation report delivered an unwelcome jolt, with consumer prices rising faster than anticipated and services costs accelerating. The data prompted Federal Reserve Bank of Chicago President Austan Goolsbee to describe the report as "discouraging," notably flagging the services component as a particular concern.

According to the Bureau of Labor Statistics, headline CPI climbed 0.6% in September and 3.7% year-over-year, up from 3.4% in August. While gasoline prices—which surged 9.1% for the month—accounted for more than half the overall increase, the core measure, which excludes food and energy, also showed stubborn pressure. Core CPI rose 0.3% monthly and 2.6% annually, accelerating from 2.4% in August.

Services inflation, a key focus for policymakers, rose 0.4% on the month and 3.1% from a year earlier, picking up from August's 0.3% monthly pace. Shelter costs increased 0.4%, transportation services jumped 0.6%, and medical-care services edged up 0.3%.

Goolsbee: Don't Overreact, But Stay Vigilant

In an interview on October 13, Goolsbee stressed that the Fed should not react to a single report but rather to the cumulative trend. "The key is to focus on the trend of inflation, not one report," he said, echoing the headline of his remarks. He added that services inflation "was moving in the wrong direction" and that the Fed should maintain a "steady hand."

Goolsbee, who is not a voting member of the rate-setting Federal Open Market Committee this year, emphasized that the Fed's legal mandate is to pursue maximum employment and price stability—not to satisfy markets or political pressures.

Market Odds Shift Toward a Hike

Following the CPI release, market-implied expectations for a rate hike at the Fed's October 27–28 meeting climbed to approximately 40%, according to Reuters (TRI), up from about 22% before the data. While a hold remains more likely than not, the shift underscores investors' heightened sensitivity to inflation surprises.

The next policy decision will be made without the benefit of another monthly CPI report; the October inflation data is scheduled for release on November 10 at 8:30 a.m. ET, after the meeting concludes.

Broader Debate: Is AI Overheating the Economy?

Goolsbee's caution extends beyond traditional inflation drivers. He has warned that demand from data centers—spanning electricity, land, construction workers, and electrical equipment—may be "jumping out of its lane" into unrelated sectors. His business contacts in Illinois report difficulty hiring electricians and long waits for components. However, he acknowledged that the evidence is not conclusive.

Fed Governor Lisa Cook has offered a counterpoint, suggesting that AI demand may be shifting activity toward specific sectors rather than fueling broad-based inflation. That disagreement highlights the challenge of diagnosing the sources of inflation and calibrating policy accordingly.

What to Watch

Looking ahead, Goolsbee outlined two conditional paths. If services inflation continues to strengthen and AI investment presses demand beyond productive capacity, further restraint may be required. Conversely, if tariff and oil effects fade and inflation resumes a credible path toward the Fed's 2% target, rates could settle meaningfully below current levels.

The crucial question is whether September's pickup is a one-off or the start of a broader trend. For now, policymakers remain data-dependent, and markets will be watching the next CPI print on November 10—after the October meeting—for clearer signals.

Correction: An earlier version of this article misstated the date of the October 13 interview in which Goolsbee made his remarks. It has been corrected.