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Excess comovement in credit default swap markets: Evidence from the CDX indices

Author

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  • Cathcart, Lara
  • El-Jahel, Lina
  • Evans, Leo
  • Shi, Yining

Abstract

We provide evidence of excess comovement in the credit default swap (CDS) market following inclusions to and exclusions from investment grade and high yield CDX indices during the 2003–2016 period. We find that when a name joins an index, its return tends to covary more with the returns of that index and conversely when it is excluded from an index, its return tends to covary less with it. We use univariate regressions and a difference-in-difference approach to show that the CDS market is impacted by indexation. This excess comovement indicates a departure from fundamental-based pricing and provides support in favour of style investing.

Suggested Citation

  • Cathcart, Lara & El-Jahel, Lina & Evans, Leo & Shi, Yining, 2019. "Excess comovement in credit default swap markets: Evidence from the CDX indices," Journal of Financial Markets, Elsevier, vol. 43(C), pages 96-120.
    • Handle: RePEc:eee:finmar:v:43:y:2019:i:c:p:96-120
    DOI: 10.1016/j.finmar.2018.10.002
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    More about this item

    Keywords

    Credit default swaps; Excess comovement; CDX indices; Credit ratings;
    All these keywords.

    JEL classification:

    • C20 - Mathematical and Quantitative Methods - - Single Equation Models; Single Variables - - - General
    • 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

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