Just noticed something pretty interesting in how the market's been pricing things lately. Everyone's focused on stocks rallying hard—S&P 500 just put up a 9.8% gain over 10 trading days, the strongest run since that pandemic rebound back in April 2020. But here's what caught my attention: while equities are celebrating, the Treasury bond market is basically stuck. It's like two completely different reactions to the same shock.

The oil price moves are still the main driver of everything, but the way stocks and bonds are responding to those moves has totally diverged. Since the Iran conflict kicked off, equities have been gradually decoupling from oil—showing this weakly positive relationship where higher oil doesn't automatically tank stocks anymore. Bonds? Still glued to oil prices, moving in almost perfect sync. That's a meaningful shift.

So why's the Treasury market lagging so hard? I think there are a few things going on here, and Deutsche Bank actually laid out a pretty solid analysis on this. They're saying both asset classes will stay sensitive to oil, but the drivers are different now. For stocks, it's about growth expectations and profit momentum. For bonds, it's all about inflation and supply pressures.

Let me break down what I think is happening with the bond market specifically. Before this conflict, Treasury yields had already gotten artificially depressed. The market was running on this overly pessimistic narrative about AI's macro impact, combined with premature bets that the Fed would need to cut rates aggressively because the labor market was supposedly weakening. People were pricing in a deflationary scenario that just didn't materialize. Rate cuts were already fully baked in, but that thesis is falling apart now. The employment data has been stronger than expected—ADP numbers especially showed labor market resilience that caught a lot of people off guard.

Here's the key thing about the Treasury bond market right now: it's completely dominated by inflation expectations. Since the war started, you can see it clearly in the chart—10-year yields and Brent crude are moving in near-perfect correlation. Higher oil equals higher yields. That tells you everything about what's pricing in: pure inflation premium, no relief in sight.

Equities have a natural advantage here that bonds just don't have. Corporate profits are nominal—they scale up with prices. So when inflation ticks higher, S&P 500 earnings don't actually get hurt the same way bond cash flows do. In fact, Q1 profit growth is tracking toward 19%, way above consensus. That robust earnings outlook is basically cushioning stocks against the oil shock. Meanwhile, fixed-rate bond cash flows don't adjust for inflation at all. So when oil prices spike and inflation expectations rise, it directly increases discount rates and crushes bond valuations. Completely opposite effect from stocks.

There's also the fiscal story, which is reinforcing this divergence. War typically means bigger government spending—short term for energy subsidies, longer term for defense and energy independence. More fiscal spending means more Treasury issuance, which puts direct pressure on bond prices and pushes yields higher. For stocks, especially defense and energy names, fiscal expansion usually reads as demand support. Same shock, completely different outcomes.

Looking at the Treasury bond market from a positioning standpoint, it's trapped. There was already a pricing bias baked in before the conflict—yields were too low on faulty assumptions. Now those assumptions are breaking down, but the inflation story is reasserting itself, keeping yields elevated. The bond market can't catch the same relief rally that stocks are getting.

That said, I wouldn't call this a permanent decoupling. Oil is still the key variable for both. The correlation data between S&P 500 futures and Brent shows that while the negative correlation has narrowed (stocks aren't falling as hard when oil rises), it hasn't fundamentally flipped. If crude prices spike again, or if employment and inflation data suddenly shift Fed expectations, this whole stock-bond divergence pattern gets tested hard.

For now, equities have the structural advantage in this environment—nominal profit growth, fiscal tailwinds, and reduced sensitivity to oil shocks. The Treasury bond market is basically caught between inflation pressures and supply concerns, with yields likely to stay elevated. But this isn't a one-way trade. Keep an eye on oil, labor data, and Fed commentary. Any significant shift there and the Treasury market could face fresh pressure or relief depending on which way things move.