Muni Monthly: July 2026

Muni Monthly: July 2026

This month’s Muni Monthly covers performance, supply and demand technicals, fundamentals and valuations for the month ending July 2026.

Performance Overview: Munis posted the weakest July returns in over two decades.

Municipals posted their weakest July return in more than two decades. The Bloomberg Municipal Bond Index returned -1.85%, underperforming most investment-grade fixed-income sectors and marking just the fifth negative July return over the past 30 years. July is typically supported by lighter issuance and strong reinvestment demand. Longer-duration bonds lagged amid persistent inflation uncertainty and elevated supply, while higher-quality cohorts also underperformed as continued credit-spread tightening favored lower-rated segments. Despite the July decline, the Bloomberg U.S. Municipal Bond Index return remained positive at 0.43% year to date (YTD), compared with returns of -0.69% for the U.S. Aggregate index, -0.84% for the Treasury index and -0.83% for the Corporate index.

Exhibit 1: Bloomberg Municipal Bond Index—July Performance

Technicals: Municipal demand is down from June but still above the 10-year July average.

Elevated issuance and a rising forward calendar outweighed otherwise steady fund demand. July municipal issuance totaled approximately $47 billion, down 25% from June but still 28% above the 10-year July average. The Bloomberg 30-day forward supply calendar increased from $12.5 billion at the beginning of the month to $24 billion by month-end, underscoring the persistent pace of record issuance in 2026. Meanwhile, combined Lipper and ICI estimates indicate that municipal funds recorded more than $9 billion of net inflows during July, roughly in line with June.

Exhibit 2: July Tax-Exempt Supply Maintained Record Pace

See more: Higher Rates Create New Opportunities in Muni Bonds