Yields on Weakest U.S. Corporate Bonds Jump Over 4 Percentage Points in 2026 as Spreads Widen

Yields on the lowest-rated U.S. corporate bonds have surged by more than 4 percentage points since the start of the year, driven by expanding credit spreads that are sharply escalating financing costs for vulnerable corporate borrowers.
The widening risk premiums reflect mounting pressure across the high-yield credit spectrum, where lenders are requiring significantly higher compensation to absorb default risk amid persistent benchmark rate volatility.