• Bank of America (NYSE:BAC) warns October's hot CPI virtually guarantees a December Fed rate hike and opens the door to a larger 50bps move; the bank sees growing risk of another hike in January rather than March.
  • October CPI surprises to the upside, fueling expectations for a December rate hike and raising the possibility of another increase in January.
  • Northlight Asset Management CIO Chris Zaccarelli sees a 25-basis-point hike in December, with a larger 50bps move under discussion, and a second 25bps hike in January as a growing risk.
  • A more aggressive Fed tightening cycle could become a major headwind for stocks in 2027, as investors weigh the pace of rate increases.

Hot CPI Puts December Hike in Play

October’s consumer price index rose 0.4% month over month, exceeding the 0.3% consensus, while core CPI, excluding food and energy, increased 0.3% versus an expected 0.2%. The hotter-than-expected reading has solidified expectations that the Federal Reserve will raise interest rates at its December 8-9 meeting. Fed Governor Christopher Waller has even suggested that a half-point move should be considered if underlying inflation remains sufficiently strong, though a quarter-point increase remains the leading expectation. Market-implied probabilities, according to a post-release snapshot, put the odds at roughly 85% for a 25-basis-point hike and 15% for a 50-basis-point move.

“The inflation surprise changes the calculus for the Fed,” said Chris Zaccarelli, chief investment officer at Northlight Asset Management. “A December hike is now almost certain, but the bigger question is what comes next.”

Zaccarelli expects a 25-basis-point increase in December, but he also flags a larger 50bps move as a real possibility. More importantly, he sees a second 25bps hike in January as now possible, a scenario that was previously considered unlikely. “If the Fed decides to tighten in back-to-back meetings, that would be a more aggressive path than the market is currently pricing,” he added.

Bank of America Sees 50bps Risk, Flags Policy Mistake

Bank of America says October's hot CPI report virtually guarantees a December Fed rate hike — and opens the door to a larger 50bps move. Headline CPI rose 0.4%, while core CPI climbed 0.3%, marking a third consecutive upside inflation surprise. BofA now estimates core PCE inflation at 3.3% YoY. Price pressures are spreading across goods and services, with electronics, airfares and hotels driving increases. BofA still expects 25bps in December, but sees growing risk of another hike in January rather than March. The bank warns the Fed is falling behind inflation and calls October's decision to hold rates a potential policy mistake.

Market Reaction and Implications

Equity markets reacted swiftly to the CPI release, with Nasdaq futures down approximately 1.4% and S&P 500 futures off 0.8% in early trading. The two-year Treasury yield jumped about 13 basis points to 4.68%, reflecting a sharp repricing of near-term rate expectations. The move underscores investor concerns that a faster pace of tightening could weigh on valuations and corporate earnings.

“The amount of additional tightening required in 2027 may ultimately matter more than whether December brings 25 or 50 basis points,” said Daniel Siluk of Janus Henderson (NYSE:JHG), echoing Zaccarelli’s focus on the longer-term trajectory.

A more aggressive Fed tightening cycle could become a major headwind for stocks in 2027, as higher borrowing costs and tighter financial conditions may pressure economic growth and equity multiples. The Fed has already raised rates in September and held them at 3.75%–4.00% in October. The September increase came despite political pressure from President Donald Trump for a cut, highlighting the central bank’s focus on combating inflation.

Broader Economic Context

The October CPI report showed price pressures were broad-based, with shelter rising 0.3% and accounting for more than 30% of the monthly headline increase. Food rose 0.5%, energy 0.7%, and transportation services 0.8%. The persistence of core inflation at 0.3% for a third consecutive month helps explain why policymakers are considering additional tightening.

A complicating factor: the Bureau of Labor Statistics could not publish most October year-over-year inflation comparisons because the October 2025 government shutdown prevented collection of the necessary base-period data. Forecast annual inflation figures should therefore not be mistaken for reported October results.

Trade policy also plays a role, with the administration’s import tariffs cited by Reuters (NASDAQ:TRI) as a contributor to the cost-of-living increase, alongside higher energy costs. Geopolitical tensions, including the U.S.-Israeli war with Iran, have added to global inflation concerns and contributed to tightening by major central banks. Hopes of de-escalation had pushed oil prices lower ahead of the CPI release, a potential counterweight if sustained.

The combination of persistent inflation and weaker growth has raised stagflation concerns. For households, the prospect of higher borrowing costs adds to the burden of rising essential expenses, while investors face the reality of a Fed that may need to act more forcefully to restore price stability. As Zaccarelli put it, “The risk of a policy mistake is rising, and that’s something equity investors need to take seriously.”

Northlight Asset Management, based in Charlotte, North Carolina, is an investment adviser. Zaccarelli’s comments are his own forecasts and do not represent an official Fed decision. The Fed’s next meeting is December 8-9, and the November CPI report is scheduled for December 10.