The table below presents the IRRs by vintage for fully liquidated EU CLO deals from the 2013 to 2023 vintages, based on a sample of 134 deals.

The table below presents the IRRs by vintage for fully liquidated US CLO deals from the 2012 to 2023 vintages, based on a sample of 958 deals.

2025 is on course to be another record-breaking year. This article explores some of the key ingredients behind strong primary issuance.

Among the top performers are Oak Hill Advisors, UBS AM, and Palmer Square Capital Management.

In year-to-date 2025 and throughout 2024, managers have, on average, broadly tracked the loan index across all three inception-to-date annualised metrics: total return, market value (MV) return, and interest return. The benchmark loan index used is the Morningstar LSTA U.S. B/BB Ratings Loan Index. Nonetheless, several managers—such as OHA, Golub Capital, and UBS AM—have continued to distinguish themselves with above-average inception-to-date alpha since 2020, while others have consistently lagged behind the index.

Late last week, approximately $240 million of long-dated AAA tranches (with reinvestment periods ending between 2029-2030) changed hands, as shown in the table below. Top-tier prints were mainly in the 150 DM area. For example, MAGNE 2024-42A A1 traded with a cover bid of 150 DM.

A more objective way to evaluate a manager’s capability is by examining the inception-to-date gross annualised collateral return of their deals, measured relative to the relevant loan indices and assessed on an unlevered basis. This provides a clearer measure of true alpha generation.

How Have EU CLO Managers Stacked Up Against the Loan Index Since Inception? This study examines the long-term performance of 218 EU CLO deals from the 2015–2019 vintages, using the Morningstar European Euro-Denominated Loan Index as the benchmark. As of 19 March 2025, EU CLO managers, on average, had outperformed the loan index on an inception-to-date basis—driven primarily by principal value return outperformance—while their interest return remained broadly in line with that of the index.

According to independent analysis by CLO Research, Generate Advisors has consistently delivered outperformance against the Morningstar LSTA U.S. B/BB Ratings Loan Index on an unlevered basis in recent years. Here’s a set of interview questions from CLO Research, accompanied by responses from Rizwan Akhter, Head of Generate Advisors.

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According to CLO Research’s independent analysis, RRAM has delivered consistently robust results from both equity and debt perspectives. Here’s a set of interview questions from CLO Research, accompanied by responses from Bhavin Patel, Chief Investment Officer of Redding Ridge Europe.

The table presented in this premium article showcases the trends by displaying the average annual prepayment rates for the first, second, and third years for each manager. These rates are calculated from seasoned deals whose reinvestment periods concluded before April 2024.

CLO equity investors generally prefer slower prepayment rates in the early years after the reinvestment period, as this helps sustain favourable leverage within the structure and supports more efficient funding costs. Moreover, it provides equity investors with additional time to assess the optimal call timing, which has proven particularly valuable in today’s robust market environment. For instance, a deal that exited its reinvestment period in 2022 and experienced a very rapid post-reinvestment period annual prepayment rate, leading to significant deleveraging, would have been under greater pressure to be called at a time when market conditions were less favourable than they are today.

Can AUM Growth and Performance Go Hand in Hand?

According to CLO Research’s independent analysis, Golub Capital has delivered consistently strong results from an investment alpha perspective. Specifically, Golub Capital has achieved substantial outperformance relative to the Morningstar LSTA U.S. B/BB Ratings Loan Index on an unlevered basis over the past several years. Below is a list of interview questions from CLO Research, along with responses from Scott M. Morrison, Managing Director and Head of Broadly Syndicated Loans.

Have you ever wondered how CLO tranche ratings—AAA, AA, A, BBB, and BB—are derived from a portfolio of non-investment grade loans?

Drawing from a sample of 87 EU CLO deals that have either been redeemed or are expected to reach full redemption shortly, equity tranches from the 2020, 2022, and 2023 vintages have delivered notable final IRRs, underpinned by robust equity NAV metrics. As illustrated in the table, their average equity NAVs surpassed 100%, underscoring strong performance.

Although every CLO deal is unique, analysing historical prepayment rates during the post-RP period is valuable. It reveals manager tendencies, distinguishing those who consistently deliver lower prepayment rates from those with higher rates.

The table below lists the top MVOC quartile managers and their annualised sale volumes.

A sample of 1,511 US BSL CLO deals (vintage 2013–2023) is included in this study. Deals with a collateral pool...

Please refer to the table below for the ten largest CLO managers and their global CLO collateral AUM, broken down by US BSL, US MM, and EU CLO AUM as of September 30, 2024.

This study examines a sample of 218 deals from the 2015 to 2019 vintages, utilising the Morningstar European Euro-Denominated Loan...

A sample of 1,546 US BSL CLO deals (vintage 2013–2023) is included in this study. Deals with a collateral pool...

A sample of 496 EU CLO deals (vintage 2013–2023) is included in this study. Deals with a collateral pool factor below 60% are excluded. Market Value Over-Collateralization (MVOC), for instance, at the BB tranche level, is calculated by dividing the collateral market value (MV) by the sum of CLO liabilities (AAA to BB). MVOC is a crucial point-in-time metric for pricing CLO-rated tranches, closely monitored by primary and secondary market participants. If you’re curious to explore our premium insights or would like a personal walkthrough of the website via Zoom, feel free to reach out at info@clopremium.co.uk.

While each CLO deal is different, understanding the historical prepayment rates based on the original collateral balance during the post-RI period for each manager remains highly beneficial. Analyzing these rates offers insights into the tendencies of different managers, highlighting those who consistently achieve lower prepayment rates and those who tend to experience higher rates in the post-reinvestment phase. To illustrate these trends, the following table presents the average first-year, second-year, and third-year annualized prepayment rates for each manager, based on data from their seasoned deals that have passed their reinvestment end dates. These historical post-RI prepayment rates could be useful as cash flow modeling inputs for each manager.

Based on 558 post-2012 US CLO deals that have been redeemed or paid off so far, those from the 2014 and 2018 vintages performed the worst. However, the sample size for the 2018 vintage deals is still relatively small. Deals from the 2020 and 2022 vintages performed the best, with median deals registering IRRs of...

The following EU CLO deals issued and priced their single-B tranches this year. These were initially structured for delayed issuance...

YTD, 70 BSL CLO deals have been reported to have undergone resets. Among these, 15 deals from the 2022–2023 vintages have reduced their cost of funding by an average of 61 bps, while also extending their reinvestment periods by about 2.7 years on average. 

The table below shows the top-performing managers with the most 2013–2019 deals that are in the 90th percentile category. Notably, CSAM stood out as the most successful and consistent manager in delivering good returns to equity investors. Other successful managers include Oak Hill Advisors, KKR Financial Advisors, Goldentree Asset Management, Neuberger Berman, Generate Advisors, Fortress Investment Group, and Anchorage Capital Group.

At first glance, one might assume that managers with higher portfolio spreads tend to perform well during favorable market conditions but struggle during downturns. However, upon closer analysis of the average alpha performance within each category, this assumption is only partially valid and not universally applicable.

A sample of 313 seasoned deals (2016–2019 vintage deals) managed by 57 US CLO managers is included in this study. The benchmark loan index used is the Morningstar LSTA US B-BB Ratings Loan Index.

This study includes a sample of 93 more recent deals (closed in 2021 and Jan 2022) managed by 46 managers, using the Morningstar European B Ratings Loan Index as the benchmark loan index. The table below illustrates the relative standing of each EU CLO manager based on their latest average total alpha metrics (as of 26th June 2023) . A score of 98%, for instance, indicates that the manager’s total return alpha is at the 98th percentile, meaning their total return alpha metric exceeds that of 98% of their peers.

Overweight indicates that the manager’s average industry exposure exceeds the sample average exposure by 1 percentage point. Conversely, underweight means the manager’s average industry exposure is less than the industry average exposure by 1 percentage point.

Discover the main disparities between the seasoned US BSL and EU CLO equity tranches in relation to annual distributions and final equity net asset value (NAV) realisation values necessary to achieve a 12.0% internal rate of return (IRR) target. Explore the reasons why median EU CLO equity tranches have shown higher annual distributions compared to their US equivalents.

Securitisation can certainly play a crucial role in facilitating the mobilisation of institutional capital into infrastructure financing, especially for sustainable infrastructure and clean energy projects. Additionally, it can help banks recycle their balance sheets into originating new loans to finance such infrastructure initiatives. 

In the CLO market, the terms "CLO performance" or "resilience" can have varying definitions. It is essential to note that...

This study expands its analysis to include a sample of 90 more recent deals (closed in 2021) managed by 46...

The final IRR of a 2.0 CLO equity tranche very much depends on the final equity NAV realisation. There are 20 US CLO managers with at least one deal registering an IRR of over 15%.

A sample of 197 deals (2015–2019 vintage deals) managed by 38 managers is included in this study. The benchmark loan index used is the Morningstar European Euro Denominated Loan Index.

The top five US CLO managers for each WARF category are typically larger managers with a CLO AUM of $8 billion or more.

At CLO Research, we provide genuinely independent first-hand CLO research content that is highly relevant to the investing community. We can save you precious time and resources in assessing CLO managers through manager scoring based on relative return performance rather than deal metrics.

A sample of 198 deals (2015–2019 vintage deals) managed by 39 managers is included in this study. The benchmark loan...

This article details the track record of redeemed static deals.

Which redeemed deals delivered an equity IRR of over 12.0%? 2020 vintage deals delivered extraordinary IRRs. 2012 vintage deals did well...

This article endeavours to highlight some of the key drivers of 1.0 US CLO equity tranches' outperformance.

This research report is now available to bloomberg terminal users.

This webinar was jointly hosted by Sheil Aggarwal, Head of SCI Valuations, and Poh-Heng Tan, Founder of CLO Research in...

The table below shows the top 50 managers by BWIC traded volume from September 2023 to August 2026, alongside their CLO AUM shares as of June 2026. The comparison between BWIC traded-volume shares and CLO AUM shares highlights several striking differences:

CLO Research compares US and EU CLO manager MVOC rankings with new-issue pricing since July 2026, revealing a mixed relationship...

The comparison between manager MVOC rankings and US CLO new-issue pricing since July 2026 reveals a mixed relationship. Some managers with stronger MVOC rankings, including Elmwood, Benefit Street Partners, CIFC, OCP and CVC, generally achieved strong pricing across the capital structure.

The comparison between manager MVOC rankings and new-issue pricing since July 2026, as shown in the table below, reveals a mixed relationship. Some managers with stronger MVOC rankings, including Capital Four, Brigade, Partners Group, RBC BlueBay and KKR, generally achieved strong pricing across the capital structure.

Over the past three years, managers’ shares of total traded BWIC volume across the capital structure, from AAA to equity, were generally aligned with their shares of total CLO AUM. CVC’s shares were identical at 5.0%, while Blackstone, UBS Asset Management and ICG also showed a close relationship. HPS, Voya, BlackRock, Sound Point and Investcorp accounted for noticeably higher shares of traded volume than AUM, indicating relatively greater secondary-market turnover. By contrast, Redding Ridge, Palmer Square, KKR, Hayfin and Barings were less represented in BWIC trading relative to their AUM shares.HPS, Voya, BlackRock, Sound Point and Investcorp accounted for noticeably higher shares of traded volume than AUM, indicating relatively greater secondary-market turnover. By contrast, Redding Ridge, Palmer Square, KKR, Hayfin and Barings were less represented in BWIC trading relative to their AUM, potentially indicating a higher proportion of buy-and-hold investors.

Based on SCI’s BWIC data, US CLO BWIC activity over the past five years has seen meaningful shifts in both trading patterns and liquidity. BB tranches stand out for their high secondary-market turnover relative to their share of outstanding balances. BWIC execution has recovered steadily from the 2023–24 low, while fewer but larger trades have characterised the market more recently, particularly in AAA. Traded prices have also recovered strongly from the 2022–23 lows across CLO debt tranches, although performance has varied across the capital structure.

A sample of 667 EU CLO deals is used in this study. Called deals and static deals are excluded from the sample.

Overall, the results suggest that EU CLOs experienced lower portfolio loss and default rates than their US BSL counterparts.

Over the past five years, €76.1bn of European CLO paper was shown on BWICs, of which €47.7bn traded (source: SCI’s BWIC data), implying an overall hit rate of 62.7%. While AAAs accounted for the largest share of traded volume, they changed hands far less frequently relative to their weight in a typical CLO. Mezzanine tranches punched well above their structural weight, led by BBs, while single-B trading surged in the latest year—highlighting where secondary-market activity is most concentrated and opportunistic investors are most active.

A sample of 1,626 US BSL CLO deals (vintage 2013–1H 2025) is included in this study. Deals with a collateral pool factor below 55% are excluded.

A sample of 537 EU CLO deals (vintage 2013–1H 2025) is included in this study. Deals with a collateral pool factor below 60% are excluded.

Below are tables presenting the MVOC (AAA–B) and equity NAV of US BSL and EU CLO deals by vintage, based on asset prices as of 4 September 2026.

As of June 30, 2026, total US CLO collateral AUM stood at USD 1.23 trillion. The ten largest managers are Golub Capital, Blackstone, RRAM/Apollo, The Carlyle Group, Ares Management, CIFC Asset Management, UBS Asset Management, Elmwood Asset Management, BlackRock, and Bain Capital Credit.

As at 30 June 2026, total European CLO collateral AUM stood at €309.1bn. The three largest managers were CVC Credit Partners, Blackstone and Redding Ridge Asset Management, each managing more than €11bn of European CLO collateral.

Momentum into 2026: AUM is up 6.8% in H1 2026 alone (from €289.3bn at end-2025) and 27.1% above the end-2024 level of €243.3bn, showing no sign of the growth slowing. Market leadership: the field is led by CVC Credit Partners (€14.8bn), Blackstone (€13.3bn) and Redding Ridge Asset Management (€11.6bn). The top 5 managers hold 18.9% of AUM and the top 10 31.7%.