Oil Prices, Yields Rise Amid Iran Tensions—Bond Market Signals Stagflation Fears
Oil prices and Treasury yields have climbed sharply as the Iran conflict persists and inflation concerns mount, creating a divergence between resilient stock markets and increasingly hawkish bond markets. Long-dated Treasurys have hit levels unseen since before the 2008 financial crisis, signaling investor alarm about prolonged stagflation.
Energy Markets Tighten Amid Geopolitical Stress
West Texas Intermediate futures shed 5.66% to close at $98.26 per barrel. Brent crude pulled back 5.63% to settle at $105.02 a barrel. Yet by later in the week, Oil prices moved higher amid growing concerns about global crude supply. West Texas Intermediate crude rose 1.8% to $98.05 a barrel, while Brent crude gained 2.31% to $105 a barrel. Barclays maintained its 2026 average Brent crude forecast at $100 a barrel, though the bank said risks are skewed to the upside. "Inventory trends are signaling a 6 million to 8 million barrel-per-day deficit, with U.S. inventories within reach of their lowest levels since 2020."
Stagflation Risk Surfaces
Yields on longer-dated Treasurys have risen to levels not seen since before the financial crisis. Higher-for-longer energy prices mean higher-for-longer inflation and lower-for-longer economic growth and forecasts have been revised accordingly. The key changes to forecasts in May include adding additional rate hikes in Western Europe this year, led by the European Central Bank, contributing to projected quarter-over-quarter real GDP contractions in many of the region's largest economies. The International Energy Agency revised its 2026 global oil demand forecast in its April Oil Market Report, projecting a Q2 2026 contraction of roughly 1.5 million barrels per day, which would represent the sharpest decline since the COVID-19 pandemic.
Market Divergence on Geopolitical Risk
Global stock markets have been on a tear in 2026, extending last year's rally as traders look through geopolitical turmoil and inflation fears. But bond markets are painting a different picture — and the growing divergence is ringing alarm bells for some investors. The base case for the US Federal Reserve is still that the next move in policy rates will be downwards under its new chair, though this has been pushed out to mid-2027. Futures markets have recently moved to discount a higher likelihood of a hike than a cut next year following recent strong US inflation data.
Iran Negotiations Create Uncertainty
Secretary of State Marco Rubio noted that the US had made some progress toward a deal with Iran, though more work remains, while Iran's foreign ministry spokesman stated that differences between the two sides remained deep. However, the two nations remain at odds over Tehran's enriched uranium stockpile and tolls on the strategically vital Strait of Hormuz. U.S. Secretary of State Marco Rubio said Thursday there were "good signs" that an agreement to end the conflict is within reach, but warned that any deal would be "unfeasible" if Iran pursues measures to permanently control shipping through the Strait of Hormuz.