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Are CLO Collateral and Tranche Ratings Disconnected?

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  • John M Griffin
  • Jordan Nickerson

Abstract

Between March and August 2020, S&P and Moody’s downgraded approximately 25$\%$ of collateral feeding into CLOs and only 2$\%$ of tranche values, with rating actions concentrating in junior tranches. Both S&P and Moody’s modeling indicate that the impacts should have been considerably larger, especially for higher-rated tranches. Neither changes in correlation nor the accumulation of pre-COVID-19 protective cushions can explain the downgrade asymmetry on upper tranches. Instead, CLO managers repositioned their collateral pools to dampen the negative credit shock and rating agencies incorporated qualitative adjustments in their CLO ratings. Important potential policy and market implications from these findings are discussed.Authors have furnished an Internet Appendix, which is available on the Oxford University Press Web site next to the link to the final published paper online.

Suggested Citation

  • John M Griffin & Jordan Nickerson, 2023. "Are CLO Collateral and Tranche Ratings Disconnected?," The Review of Financial Studies, Society for Financial Studies, vol. 36(6), pages 2319-2360.
    • Handle: RePEc:oup:rfinst:v:36:y:2023:i:6:p:2319-2360.
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    References listed on IDEAS

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    JEL classification:

    • G14 - Financial Economics - - General Financial Markets - - - Information and Market Efficiency; Event Studies; Insider Trading
    • G24 - Financial Economics - - Financial Institutions and Services - - - Investment Banking; Venture Capital; Brokerage
    • G28 - Financial Economics - - Financial Institutions and Services - - - Government Policy and Regulation
    • G32 - Financial Economics - - Corporate Finance and Governance - - - Financing Policy; Financial Risk and Risk Management; Capital and Ownership Structure; Value of Firms; Goodwill

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