Warsh’s favourite inflation gauge cools, but economists warn against celebrating too soon

Dallas Fed trimmed mean inflation slowed to 2.3% y/y in April from 2.4% in March, but economists warn tariff-driven price increases may be suppressing the measure and masking underlying inflation. Core PCE rose 3.3% y/y through April, its fastest pace since 2023, and Fed Governor Lisa Cook said the trend is "clearly moving in the wrong direction." The article underscores a key debate for the Fed on whether inflation is genuinely cooling or whether statistical quirks are obscuring renewed price pressure.

Analysis

The key market issue is not whether inflation is easing in the abstract, but whether the Fed can safely treat the next few prints as noise. If tariff pass-through is broadening the price distribution, trimmed measures become mechanically cleaner-looking exactly when the policy signal is getting worse, which creates a dangerous data-lag for rates. That sets up an asymmetry: front-end yields can rally on benign headline metrics, but the move is fragile because the more durable inflation gauges are still likely to catch up over the next 2-4 months.

The second-order effect is on duration-sensitive assets that are pricing a faster easing cycle than the Fed can credibly deliver. If policymakers lean on trimmed measures and markets buy it, breakevens and long-duration growth multiples can temporarily expand; if core PCE continues to reaccelerate, the repricing will be abrupt and concentrated in the 2Y-5Y curve. The more exposed pockets are small-cap leverage, unprofitable tech, and highly rate-sensitive REITs, where a 25-50 bp shift in terminal-rate expectations can matter more than the inflation level itself.

There is also a cross-asset winner/loser distinction inside the tariff channel. Domestic pricing power names with local supply chains should hold up better than import-heavy retailers and consumer discretionary franchises that cannot fully pass through costs without volume damage. The contrarian view is that the market may be overestimating how fast tariff inflation bleeds into labor and services; if that transmission stays muted, the current bond-market bearishness on inflation could prove too pessimistic over a 6-12 month horizon.

The most important catalyst is the next sequence of monthly core PCE and CPI breadth data: if the share of rising categories stays elevated, trimmed mean credibility deteriorates quickly. If it rolls over, the market may have to reverse a hawkish Fed path already embedded in front-end rates. Either way, the dispersion trade matters more than the index level.

Key Decisions for Investors

• Short IWM vs long XLP/XLP-like defensives for the next 4-8 weeks: small caps are more vulnerable to a higher-for-longer rate repricing, while consumer staples have better pass-through and lower financing sensitivity.
• Buy 2Y payer swaptions or receive-off-the-run T-note hedges into any short-dated rally in front-end yields: risk/reward favors owning convexity if core inflation reaccelerates and the market has to unwind dovish Fed expectations.
• Pair trade: long domestic pricing-power industrials/consumer names with low import dependence versus short import-heavy retailers (e.g., TGT, GPS, KSS) over 1-3 months; tariff pass-through should compress margins first in low-ATP, low-pricing-power chains.
• Reduce exposure to unprofitable software and long-duration growth via QQQ puts or selective shorts over 1-2 months: a 25-50 bp backup in real yields can trigger outsized multiple compression.
• Tactically fade any knee-jerk rally in TLT if upcoming inflation breadth data stays firm; better entry is on strength, with a stop if the next two monthly PCE prints come in below consensus.