Key Takeaways
- The 30-year Treasury yield climbed to 5.14%, marking its highest point in twenty years, while the 10-year note touched 4.62%, a 15-month peak
- Elevated bond yields are challenging equity valuations, with the S&P 500’s forward P/E ratio at 21.3x versus a historical norm of 16x
- Robust first-quarter earnings growth of 28% year-over-year is providing support for stock prices
- Geopolitical turmoil and the Strait of Hormuz situation have pushed oil beyond $100 per barrel, intensifying inflation worries
- Market strategists caution that equities haven’t adequately factored in the possibility of sustained inflationary pressure
Bond markets experienced significant volatility on Monday as U.S. Treasury yields surged to levels not witnessed in years. Market participants are questioning whether equity investors have adequately prepared for the resurgence of inflation.
The benchmark 10-year Treasury note climbed to 4.62%, representing its most elevated reading in fifteen months. Meanwhile, the 30-year bond touched 5.14%, a level unseen in two decades.

This selling pressure extended beyond American borders. Germany’s 10-year bund yield advanced to 3.18%, and Japan witnessed a dramatic 13 basis point surge in its 10-year bond, reaching 2.74%.
The yield acceleration arrives as newly appointed Federal Reserve Chair Kevin Warsh confronts mounting consumer price pressures and escalating import expenses. Monetary policymakers face increasing scrutiny in advance of an important G7 finance ministers gathering scheduled in Paris.
Oil markets are compounding inflationary pressures. Brent crude advanced to $111.16 per barrel on Monday, with U.S. West Texas Intermediate settling at $107.56. Prices remain elevated amid ongoing uncertainty surrounding a fragile ceasefire arrangement between the United States and Iran.
What’s Supporting Equity Markets
Despite significant bond market disruption, American equities have demonstrated remarkable resilience. The S&P 500 has gained over 8% since the beginning of the year, even following Friday’s nearly 1% decline.
Corporate profitability provides the explanation. American companies delivered first-quarter earnings approximately 28% above year-ago levels, representing the most substantial increase since the fourth quarter of 2021.
Jeremiah Buckley, a portfolio manager at Janus Henderson, highlighted artificial intelligence-driven efficiency improvements as a crucial driver. He suggested these productivity enhancements could persist through 2027.
However, the S&P 500’s current valuation of 21.3 times forward earnings substantially exceeds the long-term historical average of 16x, prompting concerns about the sustainability of further gains.
“Traders don’t want to turn bearish if there is a possibility that the Strait of Hormuz situation could be cleared up in just a few weeks’ time,” said Tim Murray of T. Rowe Price.
Key Concerns for Investors
Certain investment professionals aren’t waiting for clarity. Paul Karger at TwinFocus disclosed he’s maintaining substantial allocations in cash equivalents, gold, and commodity positions alongside large-cap technology holdings.
Jack Ablin of Cresset Capital warned that even a few months of delay in reopening the Strait of Hormuz could create “a brand new inflation regime for which investors just aren’t prepared.”
Producer price data revealed the sharpest increase in four years during April. Peter Tuz from Chase Investment Counsel observed that inflation appears structurally entrenched in the economy and could trigger market declines if it continues.
Capital Economics alerted clients that equity markets haven’t incorporated the risk of an extended Hormuz disruption to the same degree as fixed-income markets have.
Matthew Gertken at BCA suggested the Iran situation possesses the capacity to fundamentally alter market trajectory for the remainder of the year.
The landscape remains highly dynamic. With crude oil trading above $100, bond yields at multi-year extremes, and the Iran ceasefire remaining precarious, financial markets are entering a period of heightened uncertainty.


