US CPI Data Shows Inflation Cooling to 2.8 Percent While Fiscal Deficits Drive Long-Term Yields Higher

The latest CPI release confirmed a continued disinflation trend from 2025 peaks yet left core services prices elevated. BlackRock analysis attributes limited further progress to structural supply constraints rather than demand, noting that overnight rate hikes have diminishing returns once the policy rate exceeds neutral estimates. Treasury issuance schedules for fiscal year 2026 project net supply above $1.8 trillion, directly competing with private-sector borrowing.

Fiscal deficits now exceed 6 percent of GDP, creating a persistent bid for long-duration securities that lifts real rates independent of Fed actions. This dynamic intersects with AI-related capex, where hyperscale data center financing adds incremental demand for 10- and 30-year paper. Primary records from Treasury auctions document widening tail spreads and higher stop-out yields since Q2 2025.

The Fed faces a constrained toolkit: further short-rate adjustments risk inverting the curve further without addressing the term premium. Market pricing now embeds two 25-basis-point cuts by year-end 2026 only if core CPI prints below 2.6 percent on a three-month annualized basis. Absent spending restraint or revenue measures, the 2 percent target functions more as an aspirational benchmark than an operational ceiling.

Next data points include the September CPI and Treasury refunding announcement, which will test whether deficit financing continues to dominate price formation at the long end.