Municipals Thoughts from the Municipal Bond Desk

Mark Paris
Tim Spitz
and
Bridge from underneath

Key takeaways

  • Investor demand for munis  is stronger than expected , even as new bond supply continues at record levels, which could help support muni bond prices.

  • Pre-paid gas munis tend to offer better yields than traditional munis and can potentially deliver strong after-tax returns, especially for those in higher tax brackets.

  • Muni credit quality remains healthy overall, with more bonds upgraded than downgraded year to date.

Tim: Let’s talk about supply and demand in the muni market. Has anything changed from what you were expecting earlier this year?

Mark: Great question, Tim. Supply is still running at record levels this year, but the big shift is on the demand side, which has been stronger than many had originally expected. Some are predicting approximately $200 billion of new money flowing into muni bond funds, ETFs, and separately managed accounts over the course of 2026.1 That kind of inflow could add about $50 billion in net growth to the muni market.1 On the supply side, I’m still expecting around $600 to $625 billion in issuance to come to market, largely driven by energy-related and housing deals.1 The bottom line is that with more buyers competing for bonds, muni prices could benefit, which could be a positive setup for investors who are already in the market or looking to get in.1

Tim: You mentioned energy deals. Let’s dig into pre-paid gas muni bonds specifically. What makes them interesting for investors compared to traditional munis?

Mark: Pre-paid gas bonds—or “prepays”—are a type of muni bond that could potentially be a fit for certain investors who want exposure to corporate institutions while earning tax-exempt income. They aren’t your traditional muni bond, in that they aren’t the obligation of the participating municipal utility, but a corporate institution, which issues the bond through a special purpose entity. More than 90% of these institutions are large banks and insurers.2 Prepays tend to carry investment grade ratings,3 while typically paying a higher yield than other investment grade munis. For example, the Bloomberg gas prepay index yielded 3.88% at the end of May, as opposed to the general obligation index’s yield of 3.46%. Year to date, the prepay index has averaged a 42-basis-point yield advantage over general obligation bonds.3 Another consideration for prepays is the fact that many are structured with built-in safety features called termination payments. In plain terms, if the energy deal falls through or the supplier runs into trouble, investors get their money back at par or possibly even a bit more. That’s a layer of protection you don’t always see in munis.

Tim: The broader economy has slowed, but the credit quality of muni bonds still looks solid. Are you seeing the same thing?

Mark: Absolutely. The pace of credit upgrades has cooled from the boom we saw a couple of years ago, but the trend is still heading in the right direction, with more muni credits being upgraded than downgraded.4 So far in 2026, there have been about 425 ratings upgrades compared to roughly 365 downgrades, for a ratio of 1.17:1.3 Interestingly, the total dollar value of downgrades is higher this year, but that’s mostly a result of the impact of the Los Angeles wildfires on a limited number of issuers — not because muni credit is weakening across the board.4 I think that looking at the number of upgrades versus downgrades gives you a clearer picture of overall credit health than looking at dollar amounts alone, because one or two very large downgrades can skew the numbers. The big takeaway is that the fundamentals behind most muni bonds remain strong. Many state and local governments have been managing their finances carefully, which puts them in a good position to handle future borrowing for roads, schools, and other long-term projects.5

Read the complete article, including munis by the numbers.

  • 1

    Source: Morgan Stanley, as of May 18, 2026

  • 2

    Source: Barclays, as of Nov. 21, 2025. Latest data available.

  • 3

    Source: Bloomberg, L.P., as of June 1, 2026. Prepaid gas ratings: 33.3% rated AA, 60.8% rated A, 5.8% rated BBB, and 0.1% below BBB or non-rated. Bloomberg gas prepay index is represented by the Bloomberg Municipal Gas Forward Revenue Index, sub-index of the broader Bloomberg Municipal Bond Index, with the "Gas Forward" classification capturing municipal bonds issued by gas utility entities structured as forward revenue obligations. The Bloomberg Municipal Bond Index is an unmanaged index considered representative of the tax-exempt bond market. An investment cannot be made into an index. A credit rating is an assessment provided by a nationally recognized statistical rating organization (NRSRO) of the creditworthiness of an issuer with respect to debt obligations, including specific securities, money market instruments, or other debts. Ratings are measured on a scale that generally ranges from AAA (highest) to D (lowest); ratings are subject to change without notice. NR indicates the debtor was not rated and should not be interpreted as indicating low quality. For more information on rating methodologies, please visit the following NRSRO websites: www.standardandpoors.com and select 'Understanding Credit Ratings' under Rating Resources 'About Ratings' on the homepage.; https://ratings.moodys.io/ratings and select 'Understanding Ratings' on the homepage.; www.fitchratings.com and select 'Ratings Definitions Criteria' under 'Resources' on the homepage. Then select 'Rating Definitions' under 'Resources' on the 'Contents' menu.

  • 4

    Source: Bloomberg, L.P., as of May 11, 2026

  • 5

    Source: Bloomberg, L.P., as of May 26, 2026