Impacts of Credit Rating Changes on Borsa Istanbul (BIST) Equity Market


EGE ACADEMIC REVIEW, vol.17, no.3, pp.351-367, 2017 (Journal Indexed in ESCI) identifier

  • Publication Type: Article / Article
  • Volume: 17 Issue: 3
  • Publication Date: 2017
  • Doi Number: 10.21121/eab.2017328402
  • Title of Journal : EGE ACADEMIC REVIEW
  • Page Numbers: pp.351-367


This study aims at analyzing the impacts of Turkey's sovereign credit rating upgrades and downgrades made by Moody's Investors Service (Moody's), Standard and Poor's (S&P) and Fitch Ratings (Fitch) in 1993-2016 period on Borsa Istanbul (BIST) Equity Market. Event study analysis results show that abnormal returns concur with the relevant rating decision both before and at the event date. However, the effects are reversed afterwards. Moreover, it is apparent that negative sided rating changes have more significance over abnormal returns when compared with positive sided ones.