Global Bond Rout Sends 30-Year Yield to 5.11%, Highest Since 2007; Equities Pressured

A historic selloff in government bonds accelerated on May 15, overwhelming what had been a weeks-long rally in equities fueled by AI enthusiasm and mega-cap dominance. The 30-year US Treasury yield surged to 5.11%, matching levels not seen since mid-2007, while shorter durationBond price sensitivity to interest rate changes. instruments also sold off sharply across major markets from Japan to Europe to the United States. Bond investors fled on intensifying concerns that the Iran-driven spike in oil prices would force central banks to hold rates higher for longer, invalidating the "soft landing" narrative that had dominated market discourse.

The equity market reacted swiftly. The S&P 500 fell approximately 1 percent intraday, with the Nasdaq Composite down 1.3 percent. Chip stocks bore the brunt, as NVIDIA, AMD, and Broadcom each declined 2-3 percent, despite earlier enthusiasm around semiconductor earnings and AI capex. A significant rotation emerged, with the Russell 2000 eking out a 0.7 percent gain versus the Nasdaq's decline, suggesting investors rotated out of growth and into value and small-caps. The tape showed weakness across all major sectors; even defensives like utilities and consumer staples were not immune as the bond selloff punished the entire multiple structure.

Underlying the bond rout were several converging factors. First, crude oil prices remained elevated due to supply disruptions from the Iran-Israel conflict, with traders pricing in sustained inflationThe rate at which prices rise across an economy. over the medium term. Second, data releases during the week indicated persistent price pressures in the US economy, dimming hopes for imminent Fed rate cuts. Third, the absence of any rate-cut catalyst and the looming transition to new Fed Chair Kevin Warsh, whose policy stance on inflation was viewed as less dovish than Powell's, added uncertainty. Morgan Stanley strategists and other major houses warned that 5 percent yields on the 10-year would pose a structural challenge to equity valuations.

The debate centers on whether the bond selloff represents a healthy repricing of real rates or the beginning of a regime shift that will drive equities lower. Bond bulls argue that yields at these levels will eventually choke off growth and force the Fed to cut sooner than expected, making the selloff overdone. Bears counter that inflationThe rate at which prices rise across an economy. is re-accelerating globally and that 5+ percent yields for 30-year Treasuries are justified, and that equities at current multiples offer poor compensation for the risk. JPMorgan strategists and others note that the $87 billion in daily Treasury issuance, combined with unwinding of carryIncome earned from holding a position over time. trades, is creating technical pressure that may persist.