There is considerable debate in the literature regarding the effects of CRA’s rating announcements on stock market reactions. The aim of this study is to examine the significance of the market reaction to CRAs’ announcement by using a meta-analysis approach. We implement a two-stage procedure, relying on logistic meta-regressions based on a sample of 78 articles published in academic journals, covering a period from 1978 to 2021 and a wide range of countries. We find that the significance of the abnormal returns and their degree of significance is partly explained by the informational content of CRAs announcement and partly by methodological choices made by the authors.