Golub Capital Middle Market Report
Featuring the Golub Capital Altman Index
Q1 2026
U.S. Middle Market Remained Resilient in Q1 2026
Mission-critical enterprise software businesses grew earnings by 4% compared to Q1 2025.
Middle market private companies in the Golub Capital Altman Index grew revenue by 1.4% year-over-year in the first quarter of 2026. Earnings remained unchanged year-over-year.
The Golub Capital Altman Index can provide early insight into financial performance of public companies and GDP in advance of earnings season.
Golub Capital Altman Index Highlights
Q1 2026
| Year-Over-Year (YoY) Growth | Revenue | Earnings |
|---|
| Aggregate GCAI | 1.4% | -0.1% |
| Sub-Sector YoY Growth | Revenue | Earnings |
|---|
| Consumer | 2.0% | 3.7% |
| Software | 1.4% | 4.0% |
Source: Golub Capital Internal Data.
Lawrence E. Golub, CEO of Golub Capital, said:
Some good news: enterprise software providers of systems of record generally performed well in the first quarter. Earnings growth of 4% in our software sample shows ongoing momentum in the sector, despite concerns about AI headwinds. The broader Golub Capital Altman Index has shown continued, albeit slowing, revenue and earnings growth for middle market companies over the last several quarters, including the first quarter of 2026. Our data suggests that the U.S. economy continues to grow.
Dr. Edward I. Altman said:
Although our data offers encouraging evidence of economic resilience during the first quarter, we note that it does not reflect the impact of the Iran conflict and the consequent rise in oil prices in March. We expect that sensitivity to energy costs will be a significant driver of variance in first quarter performance at the company- and sector-level. It remains to be seen how significant of a headwind the Consumer sector faced from higher gasoline prices in March. Although the overall increase in EBITDA and revenue in the last quarter was relatively flat, both consumer and software companies showed resilient and impressive growth.
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About the Golub Capital Altman Index
The Golub Capital Altman Index measures the actual revenue and EBITDA (earnings before interest, taxes, depreciation and amortization) growth of U.S. middle market private companies for the first two months of each calendar quarter and provides insight into anticipated quarterly performance of U.S. public companies. The data referenced herein may not reflect all companies in the loan portfolio of Golub Capital during the time periods indicated.
About Dr. Edward I. Altman
A leading expert on credit markets, Dr. Edward I. Altman is the Max L. Heine Professor of Finance, Emeritus at the NYU Stern School of Business, and Director of Research in Credit and Debt Markets at the NYU Salomon Center for the Study of Financial Institutions. He is currently an advisor to several foreign central banks. Professor Altman has published or edited two-dozen books and over 150
articles in scholarly finance, accounting and economic journals. He has been inducted into the Fixed Income Analysts Society Hall of Fame, served as President of the Financial Management Association, was an FMA Fellow, and was amongst the inaugural inductees into the Turnaround Management Association Hall of Fame. He received his MBA and Ph.D. in Finance from the University of California, Los Angeles.
Important Disclosure
The Golub Capital Altman Index is provided as an indicator only and does not constitute investment advice or the offer to sell or a solicitation to buy any security. Some of these statements constitute forward-looking statements, which may be predictions about future events, future performance, or future financial conditions. Some of these statements reflect opinions based upon the data presented in the Index, and these opinions may be incorrect. Actual results could vary materially from those implied or expressed in such forward-looking statements for any reason. The Golub Capital Altman Index has been created on the basis of information provided by third-party sources that are believed to be reliable, but the information has not been verified independently by Golub Capital. Golub Capital makes no warranty or representation as to the accuracy or completeness of such third-party information.
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