March headline CPI printed 3.3% YoY — a 90-basis-point acceleration from February's 2.4% — driven by a 10.87% monthly energy surge as Brent crude spiked to $118/barrel during the Iran conflict. Core CPI held at +0.2% MoM and 2.6% YoY, providing the Fed a narrow technical fig leaf, but headline shock plus embedded inflation expectations make the April 28-29 FOMC a hold with hawkish undertones, not a pivot. TLT at $86.71 and IEF at $95.56 remain structurally mispriced for a world where the modal Fed path through 2026 is now zero cuts.
The March CPI data landed almost exactly as the worst-case scenario I outlined last cycle. Headline CPI surged 0.9% MoM — the largest monthly gain since June 2022 — pushing the YoY rate to 3.3% from 2.4% in February. The JEC breakdown confirms energy drove 10.87% of that monthly move, with gasoline posting its largest monthly gain since 1967 at +21.2%. Food was essentially flat at -0.01% MoM, so this is a clean energy shock embedded in the headline number. The Iran-U.S. ceasefire has brought oil off the $118 peak, with WTI now trading around $96/barrel — still approximately 37% above pre-conflict levels. That residual elevation means the base effect pain is not over.
The more consequential signal for the Fed is what core did NOT do: core CPI rose only 0.2% MoM in March, and core YoY came in at 2.6%. This is the number the Warsh FOMC will lean on heavily at tomorrow's press conference. The Fed will almost certainly frame March as an energy-driven transitory shock, point to contained core, and maintain the 3.50-3.75% target range without modification. The March 18 FOMC statement and minutes support exactly this posture — 11 of 12 voting members held, one dissented for a cut, and the statement characterized inflation as 'somewhat elevated.' That language is now demonstrably stale.
Here is where my thesis sharpens from last cycle: core CPI at 0.2% MoM in March is actually the bullish interpretation for bonds — and even that reading doesn't rescue TLT or IEF. Why? Because March PCE (the Fed's actual preferred gauge) is still pending, and the February core PCE came in at 0.37% MoM. If March core PCE tracks similarly — even partially elevated by services and tariff pass-through — the YoY core PCE trajectory moves toward 3.0-3.1%, not back toward 2.5%. The FOMC minutes from March already showed that options markets were pricing a 30% probability of rate hikes through early 2027. That pricing has likely moved higher post the March CPI print. Traders are now maintaining bets the Fed holds all of 2026, and a Reuters poll shows nearly one-third of economists expect zero cuts this year. The market has repriced the front end; the long end has not repriced enough.
TLT is at $86.71 YTD +0.75% and IEF is at $95.56 YTD +0.41%. Both are essentially flat on the year, which is incoherent given that: headline CPI has re-accelerated to 3.3% YoY, the modal Fed path now shows no cuts in 2026, crude oil remains well above pre-conflict levels, and the FOMC under Warsh is establishing credibility — not abandoning it for premature easing. SCHP at $26.91 with a 52-week return of 4.51% is the only fixed income instrument in this universe that has earned its keep, as TIPS real yield dynamics have provided at least partial protection. But even SCHP's YTD return of 1.73% understates how much real yield compression has yet to be priced out.
The structural backdrop makes this worse, not better. J.P. Morgan forecasts U.S. core CPI at 3.2% for full-year 2026 — above the current 2.6% YoY reading, implying re-acceleration ahead. PIIE analysis flags upside risk of inflation exceeding 4% by year-end. Labor force growth is expected near-zero starting this year, which means wage disinflation cannot be relied upon as a relief valve. The Warsh Fed tomorrow will hold and speak carefully — but the implied message to the bond market is unmistakable: real rates need to stay positive, the 2% target is not a ceiling that has been breached once but a floor that inflation is moving away from. Nominal Treasury duration is a position that requires conviction in a rapid disinflation path that the data no longer supports.