Wall Street Bets on Peace, the Bond Market Bets on Inflation

Global markets have split in two. U.S. equities closed at fresh records on June 1 — the S&P 500 at 7,599.96, the Nasdaq above 27,000 for the first time — wagering on a swift end to the Iran war. Yet 30-year government bond yields simultaneously hit multi-decade highs from London to Tokyo, pricing a lasting oil-inflation shock. For globally expanding firms, both signals demand a response.

What happened. A June 1 whipsaw captured the tension. Brent crude spiked as much as 6% toward $97 a barrel after Iran threatened to fully close the Strait of Hormuz, then pared the move once President Trump said U.S.-Iran talks were “continuing, at a rapid pace.” Oil still trades roughly 30% above pre-war levels; the strait has been effectively blocked since the February 28 strikes on Iran. Equities shrugged — Nvidia jumped 6.3% — and the VIX slid to 15.3.

Why it matters. The bond market did not shrug. The 30-year U.S. Treasury yield rose to 5.02%, its highest since 2007; the UK 30-year gilt hit 5.60%, a level unseen since 1998; Japan's 30-year JGB set a record 3.93%. Tellingly, the U.S. 10-year eased to 4.44% — a bear steepening that signals term-premium and inflation risk, not growth. S&P Global Ratings has already lifted its oil-price assumptions on the Hormuz closure.

The China angle. The squeeze cuts both ways. China routes roughly half its crude imports through Hormuz and is the strait's single largest customer — 37.7% of flows — so a full closure is an acute supply shock. At the same time, the global long-end repricing raises the cost of long-dated capital for outbound M&A and Belt and Road project finance, even as front-end rates fall.