• Goldman Sachs (NYSE:GS) Asset Management flags a December Fed hike as its base case, with persistent inflation potentially forcing additional tightening into 2027.
  • October CPI exceeded forecasts, reinforcing expectations for a quarter-point increase at the December 8-9 meeting, with a larger move now part of the debate.
  • Market odds of a December hike stood near 85% before the inflation release, according to futures pricing, and a better-than-even chance of another hike by March.

Goldman Sachs Asset Management is warning that the Federal Reserve may need to keep raising interest rates well into 2027, as stubbornly high inflation threatens to force a more aggressive tightening cycle. The caution, voiced by Lindsay Rosner, head of multi-sector fixed income investing at GSAM, came just as a key inflation report landed hotter than expected, reinforcing the case for another rate increase next month.

The Labor Department reported Thursday that the consumer price index rose 0.4% in October from the prior month, outpacing the 0.3% consensus forecast. Core CPI, which strips out volatile food and energy costs, climbed 0.3%, also above expectations of 0.2%, and matched September’s pace. While headline inflation slowed from September’s 0.6% monthly gain, the underlying measure showed no improvement, fanning fears that price pressures remain entrenched.

“December is our base case,” Rosner said, referring to a rate hike at the Fed’s December 8-9 meeting. She added that persistent inflation could push additional increases into 2027, keeping borrowing costs elevated for longer. Her comments echo those of Fed Governor Christopher Waller, who before the inflation release said he supported a quarter-point increase and that a half-point move should be considered if monthly core CPI came in at 0.3% or higher. October’s core reading met that threshold, though Waller’s view is not a commitment from the full committee.

The federal funds target currently sits at 3.75%–4.00%, following a September hike and an October pause. A quarter-point increase in December would lift it to 4.00%–4.25%. Futures markets had priced roughly an 85% probability of a December hike before Thursday’s data, with a better-than-even chance of another increase by March, according to CME Group (NASDAQ:CME) data.

A Broadening Problem

The inflation surprise is not an isolated blip. September’s personal consumption expenditures price index—the Fed’s preferred gauge—was 3.7% year over year, with core PCE at 3.1%. Waller described inflation as increasingly broad-based, citing energy costs and AI-related technology prices as potential persistent pressures into 2027. The war in Iran has also kept energy prices elevated, a supply shock the Fed cannot directly counter.

Demand has remained resilient enough to complicate the Fed’s task. Third-quarter GDP grew at a 3.4% annualized pace and unemployment stood at 4.1%, giving policymakers room to fight inflation but also raising the risk of over-tightening if spending later weakens. Richmond Fed President Tom Barkin has stressed caution on that front.

A government shutdown in 2025 prevented the collection of year-over-year CPI data for October, making monthly figures the most reliable gauge of price trends. The lack of an official annual rate has added uncertainty to the policy debate.

Market and Economic Implications

For households and homebuyers, further tightening would likely keep new borrowing and floating-rate debt expensive, though mortgage rates also depend on longer-term bond yields. Businesses with heavy debt loads could face harder refinancing conditions. Savers and bond investors may benefit from higher yields on new products, while existing fixed-rate bonds could see price declines.

Equity investors are weighing the prospect of higher discount rates against strong corporate earnings. AI-linked shares, in particular, face policy uncertainty around data-center expansion after midterm elections gave Democrats control of both congressional chambers and several governorships, with some campaigning on restraining data-center growth. Nonetheless, technology shares rallied on November 9 as oil prices fell, showing the market response remains nuanced.

Goldman Sachs itself enters the debate from a position of strength. The firm reported third-quarter net revenue of $18.68 billion and diluted earnings per share of $17.01, with annualized return on common equity of 18.7%. Assets under supervision stood at $4.10 trillion. CEO David Solomon said in October that no succession transition was underway, quelling speculation about his departure. The bank also announced agreements to acquire NEOS Investments and LCN Capital Partners during the quarter, expanding its investment-management capabilities.

Divided Forecasts

The outlook remains uncertain. J.P. Morgan (NYSE:JPM) expects a quarter-point December hike but does not anticipate a prolonged hiking cycle. A Reuters (NASDAQ:TRI) poll of 101 economists unanimously forecast a December quarter-point increase, with median projections showing PCE inflation not returning to target until at least 2028. Slow disinflation, however, does not automatically require a hike at every meeting.

The key distinction is between a December hike, which has substantial support, and an extended 2027 tightening cycle, which remains conditional. Thursday’s inflation surprise strengthens the latter risk without making it inevitable. As Rosner put it, the Fed’s credibility is on the line. “Failing to follow through on expected tightening could undermine credibility and loosen financial conditions prematurely,” Waller argued. For now, the data suggest the Fed’s work is not done.

Updated through November 10, 2026, at approximately 8:52 a.m. EST. Market probabilities cited refer to pricing before the inflation release.