Mind the Inflection Points: Global Interest Rates

Global bond markets are pricing excessive monetary tightening, creating the best opportunities in 2-to-5-year sovereign maturities while fiscal and term-premium risks argue against long-duration exposure.

• The GBP-hedged Bloomberg Global Aggregate Index returned -1.44% year to date through September 30, 2026, as higher coupon income only partly offset losses from rising yields.
• Brown Advisory attributes the rise in yields to higher energy prices, resilient activity driven by AI investment, and worsening public finances, while arguing that changing policy-rate expectations explain more of the move than term premiums.
• The U.S. 10-year Treasury term premium was estimated at 95 basis points on October 8, 2026, well above its post-GFC average but below the roughly 2% average recorded from 1987 to 2006; this supports caution on long maturities.
• The authors see insufficient second-round inflation effects from the Middle East energy shock: they have not observed meaningful acceleration in core inflation, wages, or inflation expectations, despite markets pricing aggressive additional tightening.
• Markets price another 100 basis points of hikes in New Zealand and nearly 100 basis points in Canada over the next 12 months, although unemployment is 5.6% in New Zealand, Canadian core inflation is near 2.0%, and Canada's economic slack argues against further increases.
• In Australia, rates have already risen 100 basis points this year and unemployment increased from 3.4% to 4.6%, while falling home prices and weaker real household income reduce the case for the additional tightening priced by markets.

Takeaway: The strategy is extending duration and concentrating it in 2-to-5-year sovereign bonds to capture a likely repricing toward lower policy-rate expectations, while limiting exposure to structurally higher fiscal, supply, and term-premium risks at the long end; the view remains vulnerable if energy shocks generate genuine second-round inflation or if AI investment keeps lifting neutral rates.