Global bond sell-off deepens as $100 oil stokes stagflation fears

• German 10-year bond yields crossed 3.5% for the first time since 2011, with yields rising across Asia Pacific markets (Australia up 12 basis points, South Korea up 8 basis points)
• Brent crude futures trading at $105.4/barrel could rise to $120 if Strait of Hormuz disruptions persist, according to HSBC analysts, with prices potentially remaining elevated until Q3 2027
• France downgraded its 2026 growth forecast to 0.4% from 0.7%, while Germany's Bundesbank indicated the ECB may need to move rates into 'mildly restrictive territory' to combat inflation

Summary

Market Overview:

Global bond markets experienced a significant sell-off driven by surging energy prices and growing stagflation concerns—a combination of weak economic growth and high inflation. Borrowing costs rose across major economies as oil prices hovered near $100 per barrel.

Key Data Points:

• German 10-year bond yields crossed 3.5% on Friday, the highest level since April 2011
• Brent crude futures traded at $105.4 per barrel
• European natural gas futures reached their highest level since 2022
• Japan's bond yields jumped 6 basis points; Australia's 10-year rose 12 basis points; South Korea up 8 basis points
• France downgraded its 2026 growth forecast to 0.4% from 0.7%

Central Bank Activity:

The European Central Bank hiked interest rates on Thursday. Germany's Bundesbank head indicated rates may need to move into "mildly restrictive territory" if energy pressures persist.

Market Drivers:

Analysts at Deutsche Bank cited multiple concerns: shipping obstructions in the Strait of Hormuz and Red Sea, reduced Saudi Arabian oil output, and geopolitical tensions with Iran. HSBC's senior oil analyst Kim Fustier warned the market is adjusting to a "new normal" with the Strait of Hormuz "persistently impaired."

Outlook:

If diplomatic efforts fail, Brent crude could reach $120 per barrel, with prices potentially remaining elevated through Q3 2027. The only positive note came from UK markets, where better-than-expected July growth of 0.4% pushed borrowing costs lower.

Implications:

Rising yields affect credit card and mortgage rates globally, while mounting government debt loads and elevated energy prices threaten economic growth prospects across developed markets.