IMPACT OF CREDIT RATINGS ON STOCK RETURNS

  • Krishna Reddy Toi Ohomai Institute of Technology
  • Rudi Bosman WINTEC
  • Nawazish Mirza S P Jain School of Global Management
Keywords: Credit rating, Firms, Stock returns, Global financial crisis

Abstract

This study investigates whether a change in credit ratings lead to a change in daily
excess stock returns. The sample includes daily stock price data for US firms listed
on the Standard & Poor’s 500 from January 2006 to December 2015. Firms’ excess
stock returns are compared with the market in a 14-day window around credit rating
downgrades and upgrades. Our results are asymmetric, that is, there is a significant
reaction to credit ratings downgrades but not to upgrades. In addition, we report weak
evidence of upgrades in credit ratings since the 2008 global credit crisis leading to
significant changes in security prices.

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Published
2019-02-28
How to Cite
Reddy, K., Bosman, R., & Mirza, N. (2019). IMPACT OF CREDIT RATINGS ON STOCK RETURNS. Buletin Ekonomi Moneter Dan Perbankan, 21(3), 343-366. https://doi.org/10.21098/bemp.v21i3.986
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Articles