30-Year Treasury Yield Hits 5.1%, Highest Since 2007; Global Bond Rout Halts Stock Rally

Government bond markets experienced a rout on May 15 as yields surged to levels not seen since the 2007 financial crisis. The 30-year U.S. Treasury yield climbed to 5.11%, a multi-year high, while 10-year yields and their counterparts globally followed suit. The primary driver is a confluence of inflationThe rate at which prices rise across an economy. concerns: the Iran war has disrupted oil supplies, sending crude prices higher; central banks globally are now openly discussing the risk that war-driven supply shocks could force them to raise rates rather than cut; and economic data from the U.S. continues to show persistent price pressures, contradicting earlier hopes for a disinflation endgame.

The impact on equities is stark. After a six-week rally that saw the S&P 500 and Nasdaq 100 print fresh all-time highs, Friday's selloff was broad-based and unrelenting. Semiconductors (AMD, NVDA) fell 2-3% alongside industrials, materials, and defensive names. The rotation into value and out of mega-cap growth names that powered the May rally reversed sharply. Wall Street strategists began openly discussing profit-taking and technical exhaustion, with Bank of America strategists flagging June as a likely month for near-term consolidation or weakness. The bond market is essentially signaling that equities priced in rate cuts that now appear unlikely to materialize on the original timeline.

The global dimension is critical. From the UK (gilt yields surging, pound weakness) to Japan (yields rising despite BOJ's yield-curve control) to Europe (Bund yields climbing), the selloff is synchronized, pointing to a true macro repricing rather than a localized U.S. dynamic. Corporate credit is holding up better than sovereign bonds, as high yields and strong credit spreads are attracting flows, but the broader equity-bond correlation has turned negative, a signal of underlying systemic stress. The 30-year Treasury at 5.1% is now approaching levels that strategists warned would be challenging for equities (RBC's Lori Calvasina cited 5% as a level where PE multiples would compress).

The debate centers on whether the inflationThe rate at which prices rise across an economy. shock is temporary (oil supply disruption that resolves within months) or structural (geopolitical realignment that keeps energy prices elevated and forces a permanent re-rating of real rates). Oil prices remain elevated, and any further escalation in the Middle East would extend the upside surprise to yields. Conversely, if global demand falters (recession fears rising), yields could stabilize as growth expectations reset. The S&P 500 at 7,500 is now trading at a materially higher real discount rate than it was two weeks ago.