Municipal bond yields have climbed to their highest point since April 2025, reaching 3.62% for 10-year benchmark munis. This represents an 8 basis point increase on Wednesday, following another 8 basis point rise. This surge is attributed to a combination of rising US Treasury rates and heavy supply from new bond issuances, a situation not seen since volatility caused by President Donald Trump's tariff policies in April 2025.
JPMorgan highlights this yield spike as a response to a selloff in US Treasuries, a substantial volume of new bond offerings, and insufficient demand to absorb the supply. Despite this volatility, investor interest remains robust, with muni funds experiencing $46 billion in year-to-date inflows as of early June 2026, marking the second-highest pace ever recorded. The muni market has also demonstrated a year-to-date total return of 1.74%, outperforming both corporate bonds and Treasuries.
On the supply front, municipal bond issuance was over $585 billion in 2025, with projections for 2026 reaching around $600 billion. The yield curve has also steepened considerably, with the spread between 2-year and 30-year muni maturities widening to nearly 1.9 percentage points, attracting investors to longer-dated bonds. Vanguard's Paul Malloy offers an optimistic outlook, forecasting a potential 3.5% return in the latter half of 2026, citing strong credit fundamentals of state and local governments.
The tax advantage of municipal bonds remains a key draw, with a 3.62% tax-free yield translating to an equivalent of approximately 6.1% for high-bracket investors, making them competitive with investment-grade corporate bonds while offering better credit profiles and state tax exemptions for in-state purchases. While long-term demand remains strong, the market faces short-term challenges in absorbing the projected $600 billion in new issuances, which will dictate whether yields stabilize or continue to rise. JPMorgan warns of continued supply pressures and weak near-term demand, suggesting yields may not have peaked, though Vanguard sees current levels as near fair value, assuming stable credit fundamentals and Treasury markets.
