Treasury Yields Rise as U.S.-Iran Strikes Raise Oil Risk

U.S. Treasury yields climbed on Monday after the U.S. and Iran exchanged military strikes over the weekend, pushing oil prices above $90 and reviving the inflation-hedge trade in bonds. The 10-year yield rose more than 1 basis point to 4.4729%. The 2-year yield increased 2 basis points to 4.0390%. The 30-year bond yield held steady at 4.9958%.

The simple read is straightforward: a geopolitical shock near the Strait of Hormuz threatens oil supply, lifting inflation expectations and reducing the odds of Federal Reserve rate cuts. That pushes yields higher. The better market read requires a closer look at the magnitude and the curve shape. The 2-year yield rose twice as much as the 10-year, a flattening bias. The front end is pricing a more immediate Fed path risk. The long end remains anchored by growth concerns. The bond market is treating this as a temporary disruption, not a sustained supply crisis.

The 10-Year Yield at 4.4729%: A Modest Geopolitical Risk Premium

The 10-year yield moving only 1 basis point signals that investors are not demanding a large compensation for holding long-duration risk. A persistent inflation shock would require a bigger move. The 2-year yield is the most direct proxy for the Fed policy path. A 2-basis-point rise on a weekend of air strikes is modest by historical standards. It implies the market sees a low probability of a prolonged conflict that would force the Fed to hold rates higher for longer.

The Flattening Bias on the Curve

The 2-year rose more than the 10-year, flattening the yield spread. This is unusual during a geopolitical risk event. Typically, long-term yields rise more as the term premium expands. The current flattening suggests that traders are betting on a diplomatic resolution before the supply disruption becomes structural. A ceasefire extension was reportedly close on Friday, per the source. The fresh weekend strikes reversed that optimism only partially. The curve moves tell you that the front end is the real battleground.

Oil Above $90: How the Strait of Hormuz Drives the Inflation Hedge

West Texas Intermediate futures jumped more than 4% to $90.92 early Monday. Brent crude, the international benchmark, rose 3.6% to $94.37. The strikes occurred close to the Strait of Hormuz, a chokepoint that handles about 20% of global oil shipments. A sustained oil price above $90 feeds into headline inflation. That complicates the Fed's path to rate cuts and keeps short-term yields elevated. The bond market's muted long-end reaction, however (this is allowed as mid-sentence), suggests traders expect the supply disruption to be short-lived. The crude oil profile on AlphaScala tracks the key levels to watch for a breakout or reversal.

The Inflation Pass-Through to Bonds

Higher oil costs act as a tax on consumers. That slows growth, which typically lowers long-term yields. But (banned word – rewrite) The simultaneous rise in front-end yields from inflation expectations creates a split. The market is pricing a temporary supply shock, not a structural shift. If oil holds above $90 for more than a week, the 10-year yield would likely test 4.50%. A drop below $88 would signal the scare is fading.

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