Inflation came in cooler than expected in January, and the market's reaction was swift. Growth-sensitive stocks caught a serious bid as traders started pricing in the possibility that the Federal Reserve might actually have room to cut interest rates later this year.
The headline number tells the story: consumer-price inflation slowed to an annual rate of 2.4%, down from 2.7% in December and below the 2.5% that economists had penciled in. That's the lowest inflation reading since May 2025, adding weight to the idea that price pressures are genuinely cooling as we kick off the new year.
On a monthly basis, the Consumer Price Index rose just 0.2%, which undershot both December's 0.3% bump and what Wall Street was expecting. So not only is inflation slowing on an annual basis, but the monthly momentum is softening too.
Now, the really interesting part is core inflation, which strips out the volatile food and energy components to give you a cleaner read on underlying price trends. Core CPI dropped to 2.5% year-over-year from 2.6% in December. That's the lowest core reading since March 2021, and it landed right in line with forecasts.
The monthly core number ticked up 0.3%, slightly firmer than December's 0.2% gain but still within the range economists were comfortable with. So you had a modest uptick on a monthly basis, but the broader trajectory is clearly downward.
