Top Educational Articles Since 2025
Since early 2025, the three educational articles below have collectively garnered over 7,500 views, underscoring continued interest in succinct, practical and relevant CLO content.
Independent, clear, and trusted — CLO Research Group provides actionable insights for CLO debt and equity investors.
Since early 2025, the three educational articles below have collectively garnered over 7,500 views, underscoring continued interest in succinct, practical and relevant CLO content.
I’m pleased to be moderating at the Structured Credit Investor CLO 100 event on 4 March in London. Specifically, I will be moderating the sessions on CLO manager dispersion and manager and portfolio tiering. I believe these topics will be particularly relevant in the current climate.
Please see below a selection of articles highlighting manager-level exposure to some of the more challenging credits.
The table below shows the 30 largest US CLO managers (BSL + MM), ranked by their US CLO assets under management (rather than CLO liabilities), in USD billions as of 31 December 2025.
The table below lists the 30 largest US BSL CLO managers, ranked by their US BSL CLO collateral AUM (rather than CLO liabilities), expressed in USD billions, together with their share of the USD 993.1 billion market as of December 31, 2025. Collateral AUM is used instead of CLO liabilities, as liability notionals would overstate the actual AUM.
What is the total size of the CLO market as at 31 December 2025? The total CLO market stood at...
CLOs are primarily actively managed, and some commonly used deal metrics—point-in-time indicators—can occasionally be misleading. While these metrics can be useful, they should not be considered in isolation. Additionally, combining multiple metrics does not necessarily provide a clearer picture. For example, the weighted average price (WAP) of a CLO portfolio does not measure return performance over time and can be artificially inflated by trading activity. Though WAP is helpful for quick screening, it is not a reliable indicator of whether one manager has outperformed another. The same applies to annual equity distributions—a higher distribution does not necessarily indicate better manager performance. Therefore, combining these two metrics does not necessarily offer a more accurate assessment of a manager's performance.
CLO managers are operating in a loan market where pricing discipline appears largely absent. A significant proportion of loans continues...
The CLO market has reached yet another milestone in terms of collateral AUM, surpassing US$1.5 trillion as at 30 September...
The CLO market reached another milestone in collateral AUM, hitting US$1.5 trillion as at 30 September 2025.
Please see the table below for the top 10 largest EU CLO managers and their collateral AUM trends since 2017 (rather than CLO liabilities), based on data from PitchBook and Intex.
The table below lists the 30 largest US BSL CLO managers, ranked by their US CLO collateral AUM (as opposed to CLO liabilities), in USD billions as of September 30, 2025. Collateral AUM is used instead of CLO liabilities, as liability notionals would overstate the actual AUM.
The table below shows the 15 largest global CLO managers, ranked by their CLO assets under management (rather than liabilities), in USD billions as of 30 June 2025.
The table below shows the 15 largest global CLO managers, ranked by their CLO assets under management (rather than liabilities), in USD billions as of 31 March 2025.
Primary and secondary market participants place considerable emphasis on this point-in-time metric, as it plays a key role in pricing CLO-rated tranches. Put simply, CLO debt tranche pricing tends to move in line with the underlying loan market — and MVOC provides a quick gauge of how well the collateral’s market value covers the rated liabilities.
