Highlights
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Q2 2026 Taxable Fixed Income Commentary
Fixed income indices gained during second quarter 2026, as yields were cushioned by narrowing credit spreads against the impact of rising interest rates. Year to date, index returns have been paltry as interest rates rose and credit spreads hovered near historical lows. Credit excess returns over similar duration Treasuries were generally positive across sectors during the quarter and year to date.
Credit performance seems disconnected from the headlines. Inflationary concerns persist and have dissipated any prospective rate cut beliefs. U.S. consumer sentiment remains weak due to deepening concerns over affordability. The business uncertainties stemming from artificial intelligence (AI) disruption continue to loom. All of this is occurring as the Federal Reserve (the Fed) undergoes a change in leadership under new Chairman Kevin Warsh, who created task forces to focus on the Fed’s approaches to communications, balance sheet policy, data quality and timeliness, productivity and jobs, and inflation frameworks.
The overall impact on credit market fundamentals has been limited. U.S. consumers appear challenged but resilient, with consumer debt losses and delinquency rates hovering at historically normal levels. The default rates of high-yield bonds and loans appear to have stabilized at manageable levels. Private credit default rates are declining, as are concerns over an imminent broad-based surge in default activity. All of this is also occurring in a market where strong companies can easily access debt capital.
Credit valuations became less attractive during the quarter as credit spreads of every major market sector narrowed. The percentage of corporate bonds screening as potential “buy” opportunities for BBH decreased to 7% from 10% for investment grade and to 22% from 23% for high yield. In the loan market, however, the percentage of issues screening as a “buy” candidate increased to 62% from 55% last quarter. No coupon cohort of the agency mortgage-backed securities (MBS) market screened as a “buy” candidate according to our Valuation Framework.1 In the structured credit markets, spreads narrowed but remain above historical lows. Spreads of nontraditional asset-backed securities (ABS) remain above cyclical lows, and single-asset single-borrower (SASB) commercial mortgage-backed securities (CMBS) spreads remain closer to their historic medians. Debt spreads of broadly syndicated loan (BSL) collateralized loan obligations (CLOs) narrowed and sat near cyclical lows. Spreads of debt tied to private credit narrowed during the quarter, while middle-market CLO and business development company (BDC) bond spreads declined to levels closer to cyclical lows after rising briefly last quarter amid concerns tied to software company exposures and elevated redemption requests.
There are pockets of opportunities throughout the credit markets, though selectivity is imperative. Within the investment grade corporate bond market, over 40% of finance company and life insurance names meet our criteria for purchase, and opportunities remain in bonds maturing under five years. In the high-yield bond market, over half of the automotive and finance company industries screen as “buy” opportunities, while an abundance of loans to cable satellite, broadcasting, and technology companies screen favorably, to name a few. Opportunities emerged in several structured credit sectors, including ABS backed by data centers, personal consumer loans, triple net leases, fiber optic networks, SASB CMBS, and BSL CLOs.
Higher interest rates have commanded investors’ attention, with fixed income funds experiencing inflows at a rapid pace. At the same time, credit issuance hit record-setting highs across several sectors and issuers were met with strong demand and low risk spreads. Volumes of investment grade corporate bonds increased 24%, high-yield bonds increased 21%, loans rose 25%, ABS increased 18%, and nonagency CMBS increased 30% year over year. Even volumes of debt tied to private credit rose strongly. New issue private credit CLO issuance increased 10% and BDC debt volumes rose 63% from last year’s pace. The theme of issuance tied to the buildout of AI infrastructure continued and intensified, with full-year forecasts for total credit issuance tied to financing AI ambitions rising 15% from the levels predicted at the start of the year.
Fundamentals indicate healthy performance of credits tied to borrowing by corporations, consumers, and commercial real estate operators. Default rates of high-yield corporate bonds and loans sit near their longer-term averages. Measures of private credit default activity fall in a range of 3% to 5%, higher than recent lows but consistent with long-term averages. Many types of consumer loans – including credit cards, autos, unsecured loans, and home improvement loans – report default and delinquency rates consistent with historical experience. Commercial real estate loan performance has steadied, with banks reporting minimal charge-offs and losses. Credit performance in SASB deal structures has normalized, with delinquency rates stabilizing and losses remaining low.
Prolonged periods of low credit spreads and subdued volatility are not new to the fixed income markets. In these environments, we find that executing a selective, bottom-up selection process can help investors perform through the inevitable spread widening that will occur. Though no one knows when or why spreads will widen, we believe investing in durable credits2 with careful attention to valuations, appropriate debt structuring, transparency afforded to investors, and the caliber of management serve investors’ long-term interests well regardless of the prevailing environment.
1 Our valuation framework is a purely quantitative screen for bonds that may offer excess return potential, primarily from mean reversion in spreads. When the potential excess return is above a specific hurdle rate, we label them “Buys” (others are “Holds” or “Sells”). These ratings are category names, not recommendations, as the valuation framework includes no credit research, a vital second step.
2 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. Durable means the ability to withstand a wide variety of economic conditions.
Past performance is no guarantee of future results.
Index Definitions
Ice BofA U.S. Corporate Index tracks the performance of USD denominated investment grade corporate debt publicly issued in the U.S. domestic market.
Bloomberg U.S. Corporate Bond Index represents the corporate bonds in the Bloomberg US Aggregate Bond Index, and are USD denominated, investment-grade (rated Baa3 or above by Moody’s), fixed-rate, corporate bonds with maturities of 1 year or more.
Bloomberg U.S. Aggregate Bond Index covers the USD-denominated, investment-grade (rated Baa3 or above by Moody’s), fixed-rate, and taxable areas of the bond market. This is the broadest measure of the taxable U.S. bond market, including most Treasury, agency, corporate, mortgage-backed, asset-backed, and international dollar-denominated issues, all with maturities of 1 year or more.
Uniform Mortgage Backed Security (UMBS) means a single-class MBS backed by fixed-rate mortgage loans on one-to-four unit (single-family) properties issued by either Enterprise which has the same characteristics (such as payment delay, pooling prefixes, and minimum pool submission amounts) regardless of which Enterprise is the issuer
“Bloomberg®” and the Bloomberg indexes are service marks of Bloomberg Finance L.P. and its affiliates, including Bloomberg Index Services Limited (“BISL”), the administrator of the indexes (collectively, “Bloomberg”) and have been licensed for use for certain purposes by Brown Brothers Harriman & Co (BBH). Bloomberg is not affiliated with BBH, and Bloomberg does not approve, endorse, review, or recommend the BBH Strategy. Bloomberg does not guarantee the timeliness, accurateness, or completeness of any data or information relating to the fund.
The Indexes are not available for direct investment.
Risks
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.
Asset-Backed Securities (“ABS”) are subject to risks due to defaults by the borrowers; failure of the issuer or servicer to perform; the variability in cash flows due to amortization or acceleration features; changes in interest rates which may influence the prepayments of the underlying securities; misrepresentation of asset quality, value or inadequate controls over disbursements and receipts; and the ABS being structured in ways that give certain investors less credit risk protection than others.
Basis point is a unit that is equal to 1/100th of 1% and is used to denote the change in price or yield of a financial instrument.
Traditional ABS include prime auto backed loans, credit cards and student loans (FFELP). Non-traditional ABS include ABS backed by other collateral types.
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. High yield bonds, commonly known as junk bonds, are subject to a high level of credit and market risks.
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, asset classes, and financial markets are for illustrative purposes only and are not intended to be and should not be interpreted as recommendations.
Brown Brothers Harriman & Co. (“BBH”) may be used to reference the company as a whole and/or its various subsidiaries generally. This material and any products or services may be issued or provided in multiple jurisdictions by duly authorized and regulated subsidiaries. This material is for general information and reference purposes only and does not constitute legal, tax or investment advice and is not intended as an offer to sell, or a solicitation to buy securities, services or investment products. Any reference to tax matters is not intended to be used, and may not be used, for purposes of avoiding penalties under the U.S. Internal Revenue Code, or other applicable tax regimes, or for promotion, marketing or recommendation to third parties. All information has been obtained from sources believed to be reliable, but accuracy is not guaranteed, and reliance should not be placed on the information presented. This material may not be reproduced, copied or transmitted, or any of the content disclosed to third parties, without the permission of BBH. All trademarks and service marks included are the property of BBH or their respective owners. © Brown Brothers Harriman & Co. 2026. All rights reserved.
NOT FDIC INSURED NO BANK GUARANTEE MAY LOSE MONEY
IM-18836-2026-07-16 Exp. Date 10/31/2026

