The Golub Capital Middle Market Report is the first and only report based on the actual performance of private middle market companies. Issued in advance of public company earnings season, the report is a unique source of timely information for investors and market analysts.
Lawrence E. Golub, CEO of Golub Capital, and Dr. Edward I. Altman, Professor of Finance at New York University’s Stern School of Business, are pleased to present the Golub Capital Altman Index.
U.S. Middle Market Growth Continues to Exceed Expectations
GCAI Revenue and Earnings Growth
Revenue Growth (Quarterly YoY)

Revenue Growth (Quarterly YoY) GCAI vs. Adj. Indexes

Earnings Growth (Quarterly YoY)

Earnings Growth (Quarterly YoY) GCAI vs. Adj. Indexes

Appendix: GCAI Results by Sector
Additional information can be found below regarding sector trends in the Golub Capital Altman Index.
About Golub Capital
Golub Capital is a market-leading, award-winning direct lender and experienced credit asset manager. We specialize in delivering reliable, creative and compelling financing solutions to companies backed by private equity sponsors. Our sponsor finance expertise also forms the foundation of our Broadly Syndicated Loan and Credit Opportunities investment programs. We nurture long-term, win-win partnerships that inspire repeat business from private equity sponsors and investors.
As of January 1, 2023, Golub Capital had over 775 employees and over $60 billion of capital under management, a gross measure of invested capital including leverage. The firm has lending offices in Chicago, New York, San Francisco and London.
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.
2Effective Q2 2022, the Golub Capital Altman Index (GCAI) excludes Golub Capital portfolio companies that have recurring revenue-based credit facilities. The data referenced herein may not reflect all companies in the loan portfolio of Golub Capital during the time periods indicated.
The Golub Capital Altman Index measures the actual revenue and EBITDA (earnings before interest, taxes, depreciation and amortization) growth of US middle market private companies for the first two months of each calendar quarter and provides insight into anticipated quarterly performance of US public companies. The index is based on aggregated data from approximately 150 companies in the loan portfolio of Golub Capital, a leading middle market lender. Effective Q2 2022, the Golub Capital Altman Index (GCAI) excludes Golub Capital portfolio companies that have recurring revenue-based credit facilities. The data referenced herein may not reflect all companies in the loan portfolio of Golub Capital during the time periods indicated.
Reported shortly before public company earnings season, the performance of the Golub Capital Altman Index has been highly correlated with the median growth rates in revenue and EBITDA of the companies in the S&P 500, S&P SmallCap 600, and Russell 2000 indexes, as well as quarterly Gross Domestic Product (GDP), since data began to be tracked in 2012.
For a white paper detailing the methodology behind the Golub Capital Altman Index, please click the download button.