Municipal bonds are experiencing a significant downturn, pushing yields on benchmark securities to their highest levels since at least 2011. This "violent" rout, as described by analysts, is attributed to renewed inflation fears, expectations of more interest rate hikes by the Federal Reserve, and rising oil prices, which are collectively pressuring financial markets. The selloff in munis mirrors a broader decline in US Treasuries.
Specifically, yields on 10-year state and local debt increased by nine basis points to 3.87% as of September 23, 2026, marking the highest point since January 2011. Similarly, benchmark 30-year municipal bond yields jumped eight basis points to 4.96%, a level not seen since February 2011. This surge past 5% for 30-year muni bonds, reaching 5.07% by September 24, has been driven by a painful fixed-income selloff.
The municipal bond market is also facing substantial outflows. Investors pulled approximately $1.8 billion out of the market in the week ending September 18, 2026, marking the largest outflows since April 2025 and breaking a 21-week streak of inflows. These outflows have largely been driven by open-end funds, with ETFs also experiencing declines. JPMorgan Chase & Co. strategists noted a "negative feedback loop of underperformance begetting outflows and outflows begetting underperformance."
As a consequence of the surging yields and market uncertainty, numerous municipal bond deals are being delayed or put on hold. For instance, a $1.8 billion bond sale for the Los Angeles Convention Center has been postponed due to unfavorable market conditions, with no new pricing date set. The total volume of bonds put up for bid by investment managers on September 27 was $3.4 billion, the most since the pandemic began in 2020. Despite the broad selloff, some institutional investors, such as insurance companies and banks, are reportedly being attracted by the 5% yield threshold.
Overall, the municipal bond market is on track for its worst monthly loss since 2023, and potentially the worst since 1987. This grim outlook is fueled by a combination of macroeconomic factors and a significant shift in investor sentiment, leading to higher borrowing costs for state and local governments and increased market volatility.
