Around 34% of single-B tranches from the 2012–2022 vintages had an MVOC below 100% even before the recent volatility triggered by the Liberation Day tariffs. As of 24 April 2025, that figure has risen to 40%, or 151 deals across 49 managers, as shown in the table below.
The single-B tranche is a useful way to increase the leverage of US BSL CLO deals and reduce the amount...
While the Morningstar LSTA US B/BB Ratings Loan Index has recovered to just below 97 today—after hitting a low of...
Tuesday’s BWIC colour included three distressed bonds originally rated single-B: two were covered at 31h, and one at around 10h. Discount margins were not reported, as it is highly unlikely these bonds will be repaid at par—an IRR-based approach would be more appropriate. Pricing these thin tranches remains particularly challenging, as even a small change in the underlying collateral NAV can significantly affect their value.
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.
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 key point-in-time metric for valuing CLO-rated tranches, widely tracked by participants in both primary and secondary markets.
A total of 317 US BSL CLO deals are now showing a negative equity NAV, including 95 deals from the 2018 vintage. Among single-B tranches, 169 out of 411 deals—or 41%—have an MVOC below par.
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.
In contrast, there were no EU CLO deals with negative equity NAV as of 7 March, but by 14 April 2025, 22 deals—or 4.3% of the total sample—had moved into negative territory.
Whether it makes sense or not depends on the WAP of the CLO portfolio purchased. The table below illustrates the arbitrage levels under various WAP scenarios.
The table below shows the impact of the recent dislocation on the mark-to-market (MTM) of a typical top-tier primary deal priced around two months ago. So far, the AAA–AA tranches have held up well, showing resilience with price movements smaller than those of the loan index over the same period. The BB tranche, however, was more severely impacted due to its very tight coupon and the long WAL of the tranche.
Among managers with two or three deals in the sample, CIFC and Spire Partners have also performed well, with all of their seasoned deals ranking in the top quartile.
The timing of the current market volatility is particularly challenging for many seasoned deals, which had already been impacted by successive waves of loan repricing and are now facing renewed pressure on NAVs.
Weakness in the loan market has led to a broad-based widening of discount margins across the CLO capital structure, with lower mezzanine tranches exhibiting the greatest spread sensitivity — reflecting their structurally leveraged exposure to underlying credit risk. By contrast, senior tranches (AAA/AA) of top-tier primary CLOs show a beta of less than 0.3 to loan market movements, indicating more muted spread volatility in response to changes in collateral spreads. Trinitas Euro CLO IX priced particularly well, achieving a WACC of just 205 bps, supported by solid pricing on the AAA and AA tranches.
Although too much should not be read into last Friday’s BWIC trading colour for EU CLO AAA tranches—given the relatively small notionals involved—these trades still offer valuable insight into current secondary AAA pricing.
