Recent hotter-than-expected October 2026 CPI data, with headline inflation rising 0.4% and core up 0.3% month-over-month, has shifted trader consensus toward tighter monetary policy at the January 2027 FOMC meeting. This release, combined with persistent shelter and energy pressures, has elevated the implied probability of a 25 basis point hike to 56.5% on Polymarket, ahead of no change at 41.5%. The current federal funds target range of 3.75–4.00% and firm labor market conditions, with unemployment near 4.1%, reinforce expectations that officials will prioritize inflation control over easing. Markets also price a near-certain December 2026 hike, setting the stage for January data on November and December inflation and employment to influence outcomes.