Global Bond Selloff Sends 30-Year Yield to 2007 Highs as Inflation Fears Mount

Treasury and global government bond yields surged to multi-decade highs on May 15 as war-driven inflation concerns and rising oil prices sparked a coordinated selloff, with the US 30-year yield hitting its highest level since 2007, pressuring equities and lifting real yields.
RKey facts
- US 30-year Treasury yield hit highest level since 2007 on May 15
- UK pound worst week vs USD since 2024; global bond selloff synchronized across regions
- Oil prices surged on Iran supply concerns; major forecasters slashed 2026 oil demand growth
- S&P 500 futures down 1% on May 15; semiconductors (AMD -3.3%, NVDA -2.2%) led declines
What's happening
A synchronized global bond rout unfolded on May 15 as investors fled government securities amid intensifying fears that geopolitical supply shocks and elevated oil prices would force central banks to keep rates higher for longer. The US 30-year Treasury yield climbed to its highest level since 2007, while yields across the developed world surged in tandem, with the British pound on track for its worst week against the dollar since 2024.
The trigger was multifaceted but centered on energy markets: Iranian oil supply disruptions (exacerbated by conflict concerns) sent crude prices climbing, while major oil demand forecasters slashed 2026 consumption expectations. Oil importers like India faced their first fuel price hike in four years, signaling that inflationThe rate at which prices rise across an economy. was no longer transitory chatter but an operational cost for governments. JPMorgan and other major strategists noted that bond vigilantes, investors willing to dump assets if central banks appear too accommodative, had returned to the market for the first time in years. Goldman Sachs, Morgan Stanley, and others explicitly warned that the 5% yield level would pose a material challenge to equity valuations, particularly for mega-cap growth stocks that had powered the recent rally.
Equity markets absorbed the shock on May 15, with S&P 500 futures falling 1% and the Nasdaq pulling back after weeks of record highs. Semiconductors (AMD down 3.3%, NVDA down 2.2%) and leverage-sensitive names bore the brunt, while defensive and value sectors showed relative resilience. The VIXThe 30-day implied volatility of S&P 500 options. The 'fear gauge.' remained elevated, confirming rising demand for hedges. Bank of America's Michael Hartnett warned that June would be ripe for profit-taking as crowded long positions in mega-caps unwound.
The narrative risks reversing if oil prices stabilize (strategic reserves announcements, production recovery) or if inflationThe rate at which prices rise across an economy. data soften. However, the return of bond vigilantes and central bank communication challenges suggest this volatility is structural rather than temporary. Fed incoming chair Kevin Warsh faces immediate pressure to address what SocGen termed 'unhinged' yields.
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