In examining any rating change, our results are considerably different than those of Singh and Power (1992) but are similar to the findings of Holthausen and Leftwich (1986), Hand, Holthausen, and Leftwich (1992), and Goh and Ederington (1993). Figure1 plots the CARs (in percentages) over the entire event window for any rating change based on the market model. Panel A (Panel B) shows the CARs associated with rating downgrades (upgrades) for Best, Moody’s, and S&P. Figure 1 illustrates the asymmetric market reaction to Best’s and S&P’s rating changes, as well as the more symmetric response to Moody’s rating changes