We examine the value?relevance of corporate social responsibility (CSR) reporting quality in the so?called D/A/CH?region (Germany, Austria, and Switzerland). We provide empirical evidence that higher CSR reporting quality reduces stock return volatility and abnormal returns from unexpected CSR performance risk. We argue, when the quality of CSR reporting is high, then the market is pricing firms' future CSR performance more precisely. We also find that the amount and quality of CSR reporting has significantly increased from 2002 to 2012. Particularly, the use of separate sustainability reports and integrated reports has increased over time. The data is hand?collected and obtained through an analysis of CSR reporting in annual reports, status reports, integrative reports, and CSR reports. The data set represents the complete composition of DAX30 (Germany), ATX (Austria), and SMI (Switzerland) listed firms as of December 2012.