Core CPI Beats Expectations, Pushing Fed Hike Odds to 86.7%

Core Consumer Price Index data for August increased by 0.3% month-over-month. This figure exceeded the 0.2% increase projected by economists. The higher reading immediately reshaped market expectations for the Federal Reserve. The probability of a rate hike at the upcoming meeting jumped to 86.7%. This shift occurred within minutes of the data release by the U.S. Bureau of Labor Statistics.

The Federal Open Market Committee meets on September 15 and 16. Prior to the data release, the likelihood of a rate increase stood at 69.4%. The probability of rates remaining unchanged was 30.6%. The new data pushed the hike probability up by 17.3 percentage points. The chance of no change dropped to 13.3%. This data point is the final major indicator before the policy decision.

Inflation data exceeds consensus forecasts

Core CPI excludes food and energy to measure underlying price trends. The annual rate of core inflation rose to 2.4% in August. This matched the 2.4% expected by analysts. The year-over-year figure was lower than the 2.5% seen in July. Headline CPI rose 3.4% over the last 12 months. This annual rate held steady from the previous month. The month-over-month increase for headline CPI was 0.4%. This aligned with the forecast from Dow Jones Newswires and The Wall Street Journal.

The stronger-than-expected core print was the primary driver of market reaction. Fed Governor Christopher Waller stated that this specific metric would heavily influence his vote. He indicated support for a rate hike if inflation did not show cooling signs. The data release confirmed that prices remained sticky. This supports the case for tightening monetary policy. The consistency of these numbers reduces the room for dovish interpretation.

Market pricing reflects policy shift

The CME FedWatch tool tracks the probability of rate movements. It updated in real time following the CPI release. The probability of a hike to the 3.75% to 4.0% range reached 86.7%. This was a sharp increase from the pre-data level of 69.4%. The tool now shows only a 13.3% chance of rates staying the same. This pricing reflects a consensus that the Fed will likely act. The previous probability of no change was 30.6%.

Jeff Schulze, head investment strategist at Franklin Templeton Institute, called the print the final piece of the puzzle. He stated that the stronger data cements a hike as the base case. Nic Puckrin, founder of Coin Bureau, noted that the month-over-month core increase was the only metric that mattered for the current decision. He emphasized that the number came in higher than the expected 0.2%. The market now prices in a high likelihood of action next week.

Policy context and external pressures

The Federal Reserve currently holds its policy rate steady at 3.5% to 3.75%. The last rate cut occurred in December 2025. President Donald Trump has repeatedly called for rate cuts. A hike would run counter to his public stance. The central bank must balance domestic inflation pressures against political expectations. The data suggests the bank will prioritize price stability. This decision will follow a period of steady rates since the last cut.

Energy prices have risen due to the ongoing Iran conflict. Oil prices recently spiked above $100 per barrel. This spike is not yet fully reflected in the August CPI data. Analysts from GN markets/inflation note that excluding this volatile factor is why core CPI is the focus. The producer price index released earlier this week came in as expected. However, rate hike odds climbed even before the CPI release. The cumulative effect of these indicators points toward a restrictive policy stance.