BBH Municipal Fixed Income Quarterly Update – Q1 2026

March 31, 2026
Portfolio Manager, Gregory Steier, provides an analysis of the investment environment and most recent quarter-end results of the Municipal Fixed Income strategy.
Highlights
  • While the two-year yield ended first quarter 2026 virtually unchanged, yields increased 25 bps to 35 bps for the rest of the municipal curve. The 30-year yield ended the quarter at 4.50%.
  • Our portfolios generated positive returns, outperforming their benchmarks by over 50 bps, and our team had a busy first quarter, adding opportunities in bonds with a variety of structures.
  • We see a range of potential credit impacts from the Middle East conflict. While downturns cannot be predicted, what is predictable is our approach to them when they occur. As in the past, we will carefully manage liquidity and lean in, and staying nimble and disciplined will remain our focus.

How’s it going to be?

Shadow of the Day

Like many other bond investors, we enjoy periods of quiet boredom as our portfolios steadily provide their income — as long as the stillness does not last too long. Opportunities often flourish during periods of dislocation, and it is then that managers can better distinguish themselves from one another. When market storm clouds cast their dark shadows, investor sentiment suffers, volatility rises, and selling often follows. Some say tough times build character. We prefer to think that tough times reveal character — or, for bond managers, the strength of their strategies and investment processes. The COVID-19 pandemic catalyzed the most volatile investment environment since the 2008 global financial crisis. Last spring, Liberation Day tariff announcements sent markets reeling. Now, after the municipal market began 2026 with historically strong results, it turned decisively negative following the onset of hostilities in Iran. Only time will tell where we go from here.

After storming out of the gates with a 2% return in January and February, the municipal market abruptly reversed course in March. This was the third-worst March in the last 30 years, trailing only 2020, which suffered under the onset of the pandemic, and 2022, which fell under the weight of aggressive tightening by the Federal Reserve (Fed). This year’s problem stems from the conflict in Iran and its adverse consequences for inflation and the federal budget. Since military operations began, crude oil has spiked 50%. The Strait of Hormuz, a pinch-point for 20% of the world’s crude oil, remains virtually closed, halting fertilizer and helium exports from the region as well.

Throughout the years, we have observed that sentiment swings in municipals tend to exceed those in other areas of the bond market, likely due to the household-dominated ownership of municipals. Periods of negative returns harm sentiment, which leads to industry fund redemptions, which further hurt returns, and so on. Often lost in these negative flow cycles are the attractive investment opportunities that emerge, which is why we preach, “Don’t go with the flow.” Leaning into such periods tests your mettle and requires stable client capital. In this regard, we consider ourselves fortunate as most of our clients share our constructive view of volatility. A stable capital base provides large benefits during times like this.

The Fed finds itself in a difficult position as it seeks to achieve its dual mandate of full employment and stable prices. As inflation declined over the past couple years, the Fed eased policy 175 basis points (bps)1 to support the labor market. We entered 2026 with investor expectations of two rate cuts, with the first around midyear and the second near year end. That expectation has since disappeared, with stable policy priced in for the rest of the year. Some investors are beginning to worry that rate hikes may be required to combat rising inflation risks. However, there is little that tighter policy can do to offset supply-induced inflation without also introducing major economic and financial system risks. Unfortunately, the Middle East conflict has cast a long shadow that will magnify affordability issues already plaguing the country. In the absence of a recession, Kevin Warsh, if confirmed as new Fed Chair, will have an even more difficult time convincing the Federal Open Market Committee (FOMC) to ease policy.


Exhibit 1: Table depicting monthly increases in 10-year AAA municipal yields, from March 1994 to March 2026.

While the two-year yield ended first quarter 2026 virtually unchanged, yields increased 25 bps to 35 bps for the rest of the municipal curve. The 30-year yield ended the quarter at 4.50%, within 20 bps of its post-pandemic high. These moves, however, belied their intra-quarter volatility as you can see from the chart below. March’s unusually high volatility stands out historically.


Exhibit 2: Chart depicting 2-year, 5-year, 10-year, and 30-year AAA municipal yields, as of March 31, 2026.

The quarter’s higher yields led to -0.30% returns for our intermediate benchmarks. Consistent with recent history, returns across the investment grade rating spectrum were close, with lower-rated bonds enjoying a marginal benefit. We are happy to report that our portfolios generated positive returns, outperforming their benchmarks by over 50 bps. In addition to our yield advantages, we benefited from our 15- to 20-year exposures along the yield curve which outperformed the 10-year sector (8 to 12 years). The proliferation of one- to 10-year separately managed account (SMA) programs has compressed generic, high-quality yields inside of 10 years due to their high demand. This has steepened the municipal yield curve, further improving roll-down opportunities, particularly in 15- to 20-year maturities.

Our team had a busy first quarter, adding a range of opportunities in bonds with a variety of structures. Single- and multi-family housing bonds continue to offer attractive valuations. We added planned amortization class bonds (PACs) and agency-backed multi-family bonds with spreads of 95 bps to 110 bps. We purchased a 10-year prepaid energy floating rate note backed by Morgan Stanley with a discount margin of 145 bps. We also participated in two delayed delivery deals for the State of Wisconsin and El Paso Independent School District in Texas. Both deals offered attractive pricing discounts relative to our fair value estimates. Lastly, on the heels of insurance company selling, we added New Jersey Transportation Trust Fund Authority zero-coupon bonds with 11- to 15-year maturities and spreads ranging from 65 bps to 80 bps.

From a credit standpoint, we began 2026 with uncertainties brought by 2025’s One Big Beautiful Bill Act (OBBBA). This legislation, along with other federal-level tax and policy changes, has introduced funding risks, predominantly for hospitals and states. Market valuations do not reflect these risks, and now additional shadows have been cast over the municipal market.

Investor sentiment related to private credit has turned negative given recent defaults and restricted redemptions. Many would not consider the private credit market as connected to municipals, but direct exposures exist via prepaid energy bonds that are backed by insurance companies. Prepaid energy bonds are issued to fund a specified quantity of gas or other energy, usually for a municipal utility, at a discounted price. In recent years, funding recipients have expanded beyond banks to include insurance companies. Often, these insurance companies share a parent company with alternative asset managers who have increased their exposure to private credit. We scrutinize prepaid energy transactions with care, only considering those in which we are comfortable with their guarantors, structures, and energy off-takers.

Perhaps most concerning has been the escalation of conflict in the Middle East, on top of other international tensions. We do not know how long the conflict will last or how commodity price changes will progress from here. We also see a range of potential credit impacts. On a macro level, the conflict presents risks to general economic activity and inflation as higher fuel costs leach into higher transportation costs and consumer goods prices. Many families have already been struggling with affordability issues that have now intensified. On a micro level, bonds backed by motor fuel- and vehicle-related taxes could struggle if road traffic declines. To address this risk, we stress-test such bonds using different shock scenarios both pre- and post-purchase.

After rallying strongly since last summer, the municipal market suddenly fell as hostilities in Iran began at the end of February. Downturns such as this cannot be reliably predicted; neither can their length or their severity. What is predictable, however, is our approach to downturns when they occur. As in the past, we will carefully manage liquidity and lean in. Staying nimble and disciplined will remain our focus. While shadows may loom, with solutions not so simple, we continue to adhere to our investment criteria to not only protect our portfolios, but also to capitalize on opportunities. Our team and strategy are prepared for times like this.

 
Performance
As of March 31, 2026
  Total Returns Average Annual Total Returns
  3 Mo.* YTD 1 Yr. 3 Yr. 5 Yr. 10 Yr. Since Inception
BBH Municipal Fixed Income Composite (Gross of Fees)
0.25% 0.25% 5.56% 4.17% 2.10% 2.82% 3.70%
BBH Municipal Fixed Income Composite (Net of Fees)
0.19% 0.19% 5.30% 3.91% 1.84% 2.57% 3.44%
Bloomberg Municipal Index 1-10 Yr Blend (1-12)
-0.23% -0.23% 4.17% 2.77% 1.21% 1.93% 3.17%
* Returns of less than one year are not annualized.
BBH Municipal Fixed Income inception date is 05/01/2002.
Past performance does not guarantee future results.
Sources: BBH & Co. and Bloomberg

 

 
Representative Account
Top 10 Obligors
As of March 31, 2026
State of Texas
2.9%
Southeast Energy Authority Energy Supply Revenue Bonds Series 2025E 2.6%
South Carolina Mortgage Revenue Bonds 2.5%
Port of Seattle - GARBs and PFCs 2.4%
State of New Jersey 2.3%
Texas School Bond Guarantee Program 2.2%
Texas Department of Housing and Community Affairs Single Family Mortgage Revenue Bonds 2.1%
Oregon School Bond Guarantee Program 2.1%
Salt Verde Financial Corporation 2.1%
Nebraska Investment Finance Authority 2.0%
Total 23.1%
Sources: Bloomberg and BBH
Total may not sum due to rounding.

1 One basis point is equal to 1/100th of 1%, or 0.01%.

RISKS

There is no assurance that a portfolio will achieve its investment objective or that the strategy will work under all market conditions. The value of the portfolio can be affected by changes in interest rates, general market conditions and other political, social and economic developments. Each investor should evaluate their ability to invest for the long-term, especially during periods of downturn in the market.

Investing in the bond market is subject to certain risks including market, interest-rate, issuer, credit, maturity, call and inflation risk; investments may be worth more or less than the original cost when redeemed.

Income from municipal bonds may be subject to state and local taxes and at times the alternative minimum tax.

The Strategy also invests in derivative instruments, investments whose values depend on the performance of the underlying security, assets, interest rate, index or currency and entail potentially higher volatility and risk of loss compared to traditional stock or bond investments.

As the Strategy’s exposure in any one municipal revenue sector backed by revenues from similar types of projects increases, the Strategy will become more sensitive to adverse economic, business or political developments relevant to these projects.

The Representative Account is the account whose investment guidelines allow the greatest flexibility to express active management positions. It is managed with the same investment objectives and employs substantially the same investment philosophy and processes as the proposed investment strategy.

The BBH Intermediate Municipal Strategy is comprised of fully discretionary, fee-paying municipal fixed income accounts over $5 million that are managed to an average duration of approximately 4.5 years. Accounts are benchmarked to the Bloomberg Barclays 1-10 Year Municipal Blend Index. On 10/1/2020 the BBH Intermediate Municipal Strategy was renamed the BBH Municipal Fixed Income Strategy.

Bloomberg Barclays 1-10 Year Municipal Bond Index is a component of the Barclays Municipal Bond index, including bonds with maturity dates between one and 17 years. The Bloomberg Barclays Municipal Bond Index is considered representative of the broad market for investment grade, tax-exempt bonds with a maturity of at least one year. One cannot invest directly in an index.

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GIPS® is a registered trademark of CFA Institute. CFA Institute does not endorse or promote this organization, nor does it warrant the accuracy or quality of the content contained herein.

To receive additional information regarding IM, including a GIPS Composite Report for the strategy, contact John Ackler at 212 493-8247 or via email at john.ackler@bbh.com.

Gross of fee performance results for this composite do not reflect the deduction of investment advisory fees. Actual returns will be reduced by such fees. “Net” of fees performance results reflect the deduction of the maximum investment advisory fees. Returns include all dividends and interest, other income, realized and unrealized gain, are net of all brokerage commissions, execution costs, and without provision for federal or state income taxes. Results will vary among client accounts. Performance calculated in U.S. dollars.

Holdings are subject to change.

Credits: Obligations such as bonds, notes, loans, leases and other forms of indebtedness, except for Cash and Cash Equivalents, issued by obligors other than the U.S. Government and its agencies, totaled at the level of the ultimate obligor or guarantor of the Obligation.

Issuers with credit ratings of AA or better are considered to be of high credit quality, with little risk of issuer failure. Issuers with credit ratings of BBB or better are considered to be of good credit quality, with adequate capacity to meet financial commitments. Issuers with credit ratings below BBB are considered speculative in nature and are vulnerable to the possibility of issuer failure or business interruption.

Opinions, forecasts, and discussions about investment strategies represent the author’s views as of the date of this commentary and are subject to change without notice. References to specific securities, are for illustrative purposes only and are not intended to be, and should not be interpreted as recommendations.

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IM-18299-2026-04-09   Exp. Date 7/31/2026

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