Credit rating and stock return comovement

Shen, Jianfeng, Zhang, Huiping, and Zhang, Weiqi (2025) Credit rating and stock return comovement. Journal of Banking and Finance, 177. 107474.

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Abstract

Firms with similar credit ratings, particularly high-yield ones, exhibit strong comovement in stock returns. After a firm is downgraded to high-yield status, it comoves more with other high-yield firms and less with investment-grade ones, a pattern not fully explained by changes in fundamentals or other firm characteristics. We find evidence that suggests the investor clientele explanation for rating-related comovement, potentially arising from heterogeneous lottery preferences. High-yield-averse funds reduce their holdings of firms being downgraded to high-yield status, particularly those that are more lottery-like, much more significantly than high-yield-prone funds. Furthermore, a firm’s stock returns become sensitive to flows into high-yield-prone funds after being downgraded to high-yield status, consistent with the price impact of rating-based category investing.

Item ID: 85600
Item Type: Article (Research - C1)
ISSN: 1872-6372
Copyright Information: © 2025 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
Date Deposited: 27 May 2025 23:10
FoR Codes: 38 ECONOMICS > 3801 Applied economics > 380107 Financial economics @ 100%
SEO Codes: 11 COMMERCIAL SERVICES AND TOURISM > 1102 Financial services > 110201 Finance services @ 100%
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