Wall Street opened October caught between two conflicting signals about where the Federal Reserve goes next, with prediction markets swinging wildly over the past week on the odds of a second interest-rate increase this year. The whipsaw comes barely two weeks after the Fed delivered a quarter-point hike that ended a three-year pause, and it has left traders, corporate treasurers and mortgage borrowers alike guessing whether Chair Kevin Warsh's newly hawkish central bank is just getting started.
A hike, then a hawkish pivot
On September 16, the Federal Open Market Committee raised its benchmark rate by 25 basis points to a range of 3.75% to 4.00%, the Fed's first rate increase since 2023. Warsh, who took over the Fed earlier this year and has steadily shed the institution's post-pandemic caution, framed the move as overdue. "The plain fact is that inflation is too high, and has been for too long," he told reporters after the meeting, adding that a healthy labor market gave the committee room to prioritize price stability over growth.
President Trump, who elevated Warsh to the chairmanship, made his displeasure known within hours. "Lower interest rates for the United States of America, and fast!" he wrote, repeating his preference for rates near 1% even as he stopped short of directly attacking his own pick for the job.
The hike did little to settle the inflation debate it was meant to address. The Organisation for Economic Co-operation and Development has raised its 2026 forecast for headline U.S. inflation to 4.2%, well above the Fed's own 2.7% projection and up from the OECD's prior estimate of 2.8%. The group pointed to two compounding forces: tariff pass-through into consumer prices, and a Middle East conflict that drove crude oil well above $100 a barrel for much of the year and continues to cloud the energy outlook.
Odds swing, then swing back
That murky backdrop has made the Fed's next move — at the October 27-28 meeting — unusually hard to price. Odds of another quarter-point hike spiked to 69% on September 28 on prediction-market platforms, then collapsed to as low as 33% just two days later, before edging back up to roughly 37% by Wednesday morning, according to the prediction-market tracker DeFi Rate, which averages pricing on Kalshi and Polymarket. Treasury yields and the dollar have tracked that volatility closely, and equities fell in three straight sessions last week as the higher-hike scenario gained ground.
Not every Fed official is eager to tighten further. Vice Chair Philip Jefferson has struck a more measured tone than Warsh, telling an audience this month that tariff uncertainty "complicates, at least in the short term, the picture on both sides of our dual mandate," and that he remains "confident that our current policy stance is well positioned to respond to a range of outcomes" — language read on trading desks as pushback against assuming a hike is a foregone conclusion.
The stakes extend beyond the bond market. Private-sector economists have grown noticeably more cautious about where the economy is headed if the Fed keeps tightening into a tariff- and energy-driven inflation shock. Moody's Analytics has put the 12-month probability of a U.S. recession near 50%, while Goldman Sachs economists, less alarmed but still watchful, have raised their own estimate to roughly 30%. Both forecasts are a marked shift from where they stood earlier this year, before the energy shock and tariff effects fully worked their way into price data.
What comes next
For now, markets are left reading the same data everyone else is: a resilient labor market, inflation running hotter than the Fed's own target, and a White House publicly agitating for lower borrowing costs just as its own trade policy complicates the case for cutting them. Mortgage lenders, which had been pricing in sub-6% rates for 2026 before the energy shock, are among those recalibrating again. Corporate borrowers, many of whom rushed to issue debt earlier this year anticipating higher future rates, are watching the October meeting as the next real test of whether Warsh's Fed is prepared to tighten twice in a row — or pause and let this year's shocks work their way through the economy first.
Between now and October 28, investors have a stack of data to parse, including Wednesday's manufacturing survey from the Institute for Supply Management, which will offer the first post-hike read on factory activity. Any sign that tariffs or borrowing costs are biting into production could tip the committee toward restraint; a stronger reading would feed the case Warsh made in September for finishing the job on inflation.
