Treasury Curve Quietly Flattening as Oil Shock Reverberates

The 10-year minus 2-year Treasury spread ticked down to 0.48% Thursday, continuing a subtle but steady flattening trend that’s dropped the curve 6 basis points over the past week. While still safely positive territory — far from the inversion zone that historically signals recession risk — this gradual compression tells a story about how bond markets are digesting the ongoing energy crisis.

The flattening reflects a classic oil shock playbook: short-term rates stay elevated as the Fed holds firm against energy-driven inflation, while long-term yields face competing forces. Higher oil prices ($95 WTI, up from $66 pre-crisis) should push long rates higher on inflation fears. But recession concerns in energy-dependent economies and potential growth headwinds are capping the move. The result is a curve that’s flattening, not steepening as you’d expect in a pure inflation scenario.

What makes this particularly interesting is the timeline. The Strait of Hormuz has been closed since February 28 following US-Israel strikes on Iran, and we’re now seeing secondary effects ripple through bond markets. This isn’t just about immediate energy costs — it’s about how sustained oil price premiums reshape growth and inflation expectations across different time horizons.

In this type of environment, many professional investors tend to focus on curve positioning and duration risk. Historically, flattening curves have favored shorter-duration bonds over longer ones, while energy-driven inflation has made Treasury Inflation-Protected Securities (TIPS) more attractive relative to nominal bonds. The key question becomes whether this flattening accelerates if the energy crisis deepens or reverses if diplomatic solutions emerge.

Bottom Line: A flattening curve during an oil shock isn’t necessarily bearish — it’s bond markets trying to price competing narratives about growth versus inflation. Watch whether we break below 0.40% in coming weeks.

Source: Federal Reserve Economic Data (FRED)

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