TLDR:
- The 30-year Treasury bond surpassed 5%, raising borrowing costs and pressuring stretched equity valuations across U.S. markets.
- The S&P 500 trades at 21.3x forward earnings, well above its 16x long-term average, leaving stocks exposed to a yield-driven selloff.
- First-quarter corporate profits rose nearly 28% year-over-year, with AI infrastructure spending emerging as a key growth driver.
- A prolonged Strait of Hormuz closure could unleash a new inflation regime that equity markets have not yet priced in fully.
Bond yield spike concerns are growing among investors as U.S. stock markets appear unprepared for rising inflation risks.
Despite strong first-quarter earnings and AI-driven productivity gains, geopolitical tensions tied to the Iran conflict are pushing energy prices higher.
The 30-year Treasury bond crossed 5%, while the 10-year benchmark topped 4.5% last week. Analysts warn that equity valuations remain stretched, leaving markets exposed to a potential sharp correction.
Elevated Valuations Meet Rising Treasury Yields
The S&P 500 has climbed more than 17% from its late-March low, posting a year-to-date gain above 8%. However, the index trades at 21.3 times forward earnings estimates, well above its long-term average of 16.
Rising bond yields tend to pressure these valuations by increasing borrowing costs for companies and consumers alike.
Peter Tuz, president of Chase Investment Counsel, captured the mood plainly. “I do think there is a real fear that inflation is kind of embedded in the economy going forward,” he said.
“You don’t see any signs of it going down right now, and that is a real fear, and it will drive the market down if it continues.”
Paul Karger of TwinFocus described a divided outlook among his ultra-high-net-worth clients. “Breakfast, lunch and dinner: the question is always about how to make sense of the fact that this is such a divided outlook,” he said.
He has adopted a “barbell” strategy — holding heavy positions in cash, gold, and commodities while keeping exposure to mega-cap growth stocks.
Jack Ablin at Cresset Capital pointed to the Strait of Hormuz closure as a critical variable. Even a few months of disruption to oil and LNG shipments, he warned, could trigger “a brand new inflation regime for which investors just aren’t prepared.”
Earnings Strength Masks Geopolitical Fault Lines
Corporate earnings have been a key support for equity markets through this period of uncertainty. First-quarter profits are tracking roughly 28% above year-ago levels, the strongest growth since late 2021. AI capital spending on data centers and chip infrastructure has been a major driver of that growth.
Jeremiah Buckley of Janus Henderson noted that the AI spending boom is already showing results. “We’re seeing the impact of the AI spending boom and increase in productivity,” he said, adding that momentum could carry into 2027.
Yet elevated valuations in AI-related sectors are drawing caution from some analysts who see a pullback as possible.
Tim Murray of T. Rowe Price explained why traders remain reluctant to turn bearish. “Traders don’t want to turn bearish if there is a possibility — as many think — that the Strait of Hormuz situation could be cleared up in just a few weeks’ time,” he said. That hesitation is keeping markets supported even as risks build beneath the surface.
John Higgins of Capital Economics warned clients Thursday that equity markets are not pricing in inflation risk the way Treasury markets already are.
Matthew Gertken of BCA added that “the Iran crisis has the potential to reshape the trajectory of the markets” for the rest of the year.
