Treasury Yields Scale 20-Month High on Iran Oil, Rate Fears

The 10-year Treasury yield topped 4.75% Monday - its highest since January 2025 - as Iran-driven oil gains and Federal Reserve rate-hike bets hammered utilities and REITs.

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The benchmark 10-year U.S. Treasury yield topped 4.75% on Monday for the first time since January 2025, as two distinct pressures arrived simultaneously: a fresh crude oil shock from escalating U.S.-Iran hostilities, and a reassessment of Federal Reserve interest rates that pushed rate-hike probabilities to their highest reading in months. The selloff in government debt rippled quickly into rate-sensitive equity sectors, with utilities and real estate investment trusts absorbing outsized losses as the gap between their dividend yields and the risk-free rate of return on Treasuries widened to punishing levels.

Why Did Treasury Yields Spike So Sharply on Monday?

The 10-year note's climb above 4.75% reflected a simultaneous repricing of two risks that had been treated as separate. Crude oil benchmarks jumped nearly 3% during Monday's session after President Donald Trump publicly dismissed the prospect of a ceasefire with Iran, reversing weeks of de-escalation optimism that had pulled Brent crude back from its conflict-era highs. Higher energy prices translate quickly into expectations for stickier headline consumer inflation, which in turn narrows the Federal Reserve's window to keep interest rates on hold. CME FedWatch data showed markets pricing a 36% probability of a rate hike at the central bank's next policy meeting - a sharp move higher from the prior week - amplifying the selling pressure across the Treasury curve.

What Does the Iran Conflict Mean for Oil and Inflation?

The Iran conflict has already delivered one of the most violent commodity price shocks of the decade. Brent crude surged more than 40% between January and March 2026 as military escalation threatened flows through the Strait of Hormuz, a chokepoint handling roughly 20% of seaborne oil trade. Prices retreated on subsequent ceasefire negotiations, but Monday's session demonstrated how fragile that pullback remains. With Brent threatening to push back toward $100 a barrel, the inflation arithmetic for the Fed becomes considerably harder. Energy costs feed directly into both headline consumer price inflation and producer cost bases across manufacturing and logistics, complicating any case for rate cuts or an extended pause in the tightening cycle.

How to Buy Treasury Bonds During a Yield Spike

Investors seeking to lock in elevated yields can purchase U.S. Treasury bonds directly through TreasuryDirect.gov or via brokerage accounts, with no commission on new-issue purchases. The 4.75% yield on the 10-year now represents the highest guaranteed return available from a U.S. government instrument since January 2025, making Treasuries increasingly competitive with dividend-paying equities on a risk-adjusted basis.

How Does This Affect Utilities and REITs?

The mechanics are straightforward and severe. With the 10-year risk-free yield at 4.75%, sectors that trade as yield proxies lose their relative income appeal rapidly. The Utilities Select Sector SPDR Fund (XLU) sector currently offers an average dividend yield near 2.8% - roughly 170 to 190 basis points below the 10-year, and well below its five-year average spread premium. For real estate investment trusts, the damage is doubly corrosive: rising long-term interest rates compress property valuations by lifting cap rates, while simultaneously inflating refinancing costs for balance sheets that carry significant floating-rate and near-maturity fixed-rate debt. Mortgage REITs including NLY (Annaly Capital Management) and AGNC (AGNC Investment Corp) sit at the sharpest point of the curve, as their profitability depends directly on the spread between short-term funding costs and the yield on their mortgage-backed security holdings - a spread that narrows as the rate environment tightens.

Market Reaction

Equities absorbed the bond market's signal unevenly. SPY slipped as sector rotation accelerated away from yield-sensitive names, with XLU leading broad declines among the major sector ETFs. Financials, by contrast, showed relative strength: banks and insurers benefit from steeper yield curves and wider net interest margins. Among REITs, names with significant refinancing walls in 2026 and 2027 drew the most selling pressure. NLY and AGNC both declined as the mathematical case for their leveraged carry strategies deteriorated in real time. Broader equity volatility remained contained by historical standards, but the bond market's move - five basis points in a single session on an instrument as liquid as the 10-year - registered as a meaningful repricing of the macro landscape.

Strategic Context

The 4.75% threshold holds significance beyond the immediate session. When the 10-year yield stood at similar levels in late 2024 and early 2025, it triggered a broad reassessment of equity valuations in rate-sensitive sectors and forced several REIT balance sheets to restructure near-term debt at materially higher costs. Portfolio managers monitoring duration exposure are now contending with the same calculus: at 4.75%, holding long-duration bonds or bond-like equities requires a confidence in rate stability that the Iran conflict and Fed repricing have materially undermined. Sector rotation into financials, energy, and value cyclicals - which benefit from both higher rates and elevated commodity prices - has emerged as the visible trade across Monday's session.

Outlook

The 10-year yield's breach of 4.75% sets a pivotal level for positioning ahead of the Federal Reserve's next policy meeting and inflation data due later this week. A stronger-than-expected consumer price read would validate the market's rate-hike repricing and likely extend the bond selloff, deepening the headwind for utilities and REITs. Any diplomatic breakthrough in the Iran standoff that removes the geopolitical premium from crude oil would ease energy-driven inflation expectations and offer rate-sensitive sectors relief. The near-term direction of interest rates now depends as much on events in the Strait of Hormuz as on the Fed's data-dependent deliberations - an unusual and uncomfortable dynamic for markets accustomed to treating geopolitics and monetary policy as separate variables.