On-the-Run Treasury Yield Curve Explained for Australian Investors (2026)

The on-the-run Treasury yield curve represents the yields of the most recently issued (and therefore most liquid) US Treasury securities at various maturities. Unlike the broader ‘off-the-run’ curve, which includes older bonds, the on-the-run curve is a live snapshot of market sentiment toward government debt.

• Short-term notes: Typically 2-year and 5-year maturities.

• Medium-term notes: 7-year maturities.

• Long-term bonds: 10-year and 30-year maturities.

In 2026, the US Treasury has continued its quarterly schedule of issuing new bonds, making the on-the-run curve a reliable barometer for real-time risk and return expectations.

For Australian investors, the US Treasury market remains a global benchmark. Australian bond yields, the value of the dollar, and even domestic mortgage rates can be influenced by shifts in the US yield curve. Here’s why the on-the-run curve is front and centre this year:

• Liquidity Premiums: On-the-run Treasuries are more liquid than older issues, often trading at slightly lower yields. This liquidity makes them a preferred benchmark for global institutional investors.

• Market Sentiment: With the US Federal Reserve’s policy outlook still evolving in 2026, movements in the on-the-run curve offer clues about inflation expectations and recession risks.

• Impact on Australian Rates: The Reserve Bank of Australia continues to monitor US yield curves when setting its own policy. Sharp changes in the on-the-run curve can ripple into Australian government bonds and term deposit rates.

Example: In early 2026, a flattening of the US on-the-run yield curve (where short and long-term yields converge) led to a brief sell-off in Australian equities and a dip in the AUD as global investors reassessed risk.

While the on-the-run curve is a technical concept, its practical uses are wide-ranging:

• Portfolio Positioning: If the curve is steepening (long-term yields rising faster than short-term), investors might expect stronger growth or higher inflation, favouring equities and inflation-protected assets.

• Risk Assessment: An inverted curve (short-term yields above long-term) has often preceded US recessions. Australian investors can use this as a warning to review risk exposure.

• Global Diversification: Australian superannuation funds and managed portfolios often hold US government bonds. Monitoring the on-the-run curve helps assess potential returns and currency risks.

Case in Point: After the 2024 US election, a surge in government spending expectations pushed up long-term Treasury yields. Australian fixed-income funds that were overweight long US Treasuries saw a temporary dip in value, underscoring the need to watch the on-the-run curve.

In 2026, several key developments have influenced the on-the-run curve:

• US Federal Reserve Guidance: The Fed’s cautious approach to rate cuts has kept the short end of the curve anchored, while fiscal expansion debates have nudged long-term yields higher.

• Global Demand Shifts: China and Japanese pension funds have resumed buying US Treasuries after a pause in 2024, supporting demand for on-the-run securities.

• Australian Market Response: The RBA’s own yield curve monitoring now explicitly references US on-the-run data in its policy minutes, reflecting the global integration of rates and risk.

The on-the-run Treasury yield curve is more than a technical chart—it’s a real-time pulse of the world’s largest bond market. For Australians in 2026, keeping an eye on this curve isn’t just for the pros: it can inform smarter asset allocation, risk management, and even everyday borrowing decisions.