Bonds spoil the AI party as 30Y yield tops pre‑GFC highs, fueling market stress

A sudden repricing in the global bond market has dented recent AI-driven equity gains, as long-term Treasury yields climbed sharply and investors reappraised valuations in growth-heavy segments.

The move accelerated after the U.S. 30‑year Treasury yield rose above 5.159%, the highest level seen since before the 2007 financial crisis, while the 10‑year yield jumped to its highest point in more than a year. Rising oil prices, accelerating inflation expectations and increased forecasts for government borrowing combined to spook fixed-income markets, with G7 finance officials meeting in Paris amid the turbulence.

Equity markets that had been driven by AI optimism faced renewed scrutiny as higher discount rates reduce the present value of long-term cash flows. The repricing pressured growth and technology names more sensitive to rate moves, and contributed to broader risk aversion across markets. In the near term, volatility is likely to remain elevated while yields find a new equilibrium.

In the wider context, persistent inflation concerns and the potential for central banks to maintain tighter policy longer are central to the bond selloff. Oil’s upward pressure on headline inflation, together with fresh government debt issuance, is prompting investors to demand higher yields across maturities, a dynamic that complicates policy trade‑offs for central banks and fiscal authorities alike.

Market commentators say the coming sessions will be driven by data on inflation, Treasury supply and oil market developments, alongside changes in Fed‑rate expectations as priced into futures. Should yields continue to rise, risk assets may face further downside, while any signs of easing in inflation or lower-than-expected issuance could quickly calm bond markets and restore some momentum to AI-linked equities.