September 2025 Municipal Bond Market Performance Report

Posted on 10.06.25
Performance Reports
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September 2025 Municipal Market Performance Recap

September delivered the strongest single-month return since December 2023, as longer-duration bonds benefited from a notable drop in yields and curve flattening.

Other Highlights:

  • Total Return: +2.20% (S&P Global Municipal Bond Investment Grade Index)
  • Curve Movement: 26 bps drop at the 10-year point
  • IDR/PCR sector spreads tightened, Housing widened
  • Top State Performers: Texas, California, and New Jersey
muni mrkt curve graph 2025 september

All table data and figures in this report were produced using Investortools, Inc.’s Custom Index Manager™ product.

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