Vanguard Positions in Short-Term TIPS to Hedge Underpriced Inflation Risk
Miles Bennett
Vanguard is buying short-term TIPS, betting that markets have underpriced the risk of inflation staying elevated — the trigger is an unusual oil-refining spread that has widened to its highest level since 2022.
What exactly is Vanguard betting on?
Vanguard is buying U.S. short-term TIPS — Treasury bonds whose returns rise with inflation — and building longer-dated breakeven inflation positions.
This means → Vanguard believes actual inflation over the next two years will run higher than what the market currently prices in.
The trigger is not a headline CPI print but an anomaly in an oil-market metric called the crack spread.
The crack-spread anomaly — what is it telling us?
The crack spread — the gap between refined-product prices and crude-oil prices — measures how much refiners earn turning crude into gasoline, diesel, and jet fuel.
After the U.S.–Iran ceasefire, crude fell sharply, but gasoline, jet fuel, and diesel fell far less, pushing the spread to its widest since 2022.
In plain terms = the raw material got cheaper, but what you pay at the pump or on an airline ticket barely budged — refiners are capturing the difference.
Alesh Koutny, Vanguard's head of international rates, said the spread used to move in lockstep with crude and was "just a secondary indicator." Now the two have clearly decoupled: "We have never watched it this closely before."
Why haven't refined-product prices followed crude down?
Middle East conflict has cut global refinery fuel output, tightening the supply side.
Ukraine's continued strikes on Russian refineries prompted Moscow to ban diesel exports, pushing refining margins even higher.
This reflects a supply-side squeeze driven by geopolitical disruption — harder to predict and slower to fade than a demand-driven swing.
How much inflation is the market pricing in?
The two-year breakeven inflation rate — the market's implied forecast for inflation over the next two years — has fallen for a month and sits near its lowest level in almost two years.
This means → the market expects U.S. inflation to land only slightly above the Fed's 2% target — Vanguard's team calls that pricing "too optimistic."
This week, Trump cast doubt on the U.S.–Iran ceasefire, oil prices jumped, and the move partly validated Vanguard's tail-risk thesis.
What decides whether this bet pays off?
Vanguard is upgrading its model to track individual petroleum distillates — gasoline, jet fuel, diesel — rather than relying on crude alone.
In plain terms = instead of watching one oil-price number for inflation signals, the team now tracks each fuel product on its own diverging path.
Koutny acknowledged the anomaly "could reinforce or undermine inflation risk — both outcomes are possible." Whether the crack spread normalizes is the key variable that will determine the bet's success or failure.
Content is for reference only, not financial advice.