Data & Analytics Insights

Does ESG matter for CLOs?

Luke Lu

Head of Credit Research

Miles Li

Research Manager, Quantitative Research and Modeling

Andrew McClymont

Structured Finance and Research, Trepp

With ESG principles being increasingly recognised as integral to sustainable investing and corporate decision-making, what will the future look like for ESG in corporate loans?

Key takeaways:

  • Positive outlook for CLOs with hopes of interest rate cuts
  • Loan deals incorporating ESG language often have better collateral composition
  • Greater transparency needed around ESG considerations

The Environmental, Social and Governance (ESG) principles have been growing rapidly in the financial world, reflected by the expansion of the UN Principles for Responsible Investment signatory list, regulatory proposals and industry-level efforts and standards.

The ESG concept firstly appeared in Collateralized Loan Obligations (CLO) offering documents in 2018, and began to emerge in CLO contracts rapidly as investors increasingly focused on sustainable and responsible investing through the years. ESG disclosure in CLOs is typically voluntary, with negative screening through eligibility criteria or exclusions being the predominant method of ESG consideration.

We analysed CLO deals with and without ESG language, by identifying and categorising the ESG-related language in their documentation. We found that deals with ESG language are more likely to have better collateral composition (lower WARF, higher WAS, and lower Caa%) and stronger structural protection, compared to those without such provisions.

ESG deals vs non-ESG deals

Looking at performance, ESG deals have outperformed non-ESG deals across vintages, with more recent vintages typically including ESG language. Our analysis shows that ESG investments favour conservative, low-risk strategies that yield high returns. These deals appear to have a more balanced risk-reward profile. In contrast, non-ESG deals are performing weaker, maintaining a more conservative approach but not achieving the same robust returns.

Unlike the exclusionary language in the CLO deal documentation, the ESG language in loan documents usually comes in the form of KPI and spread ratchets. The loan borrower could be rewarded with a margin reduction if they meet the ESG-tied KPIs or be penalised with higher financing costs for failing the KPIs.

Amid geopolitical tensions, high inflation, and market volatilities, the ESG trajectory has faced some headwinds in the last two years. However, the market has stabilised in 2024 on rate cut hopes, and the recent sustainable loan issuance activity has recovered from the third quarter of 2023 low, signaling a positive outlook for sustainability loan financing.

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