Management reports (MR) are used as companies’ communication tool for broadcasting a message or image to its shareholders. This study presents an investigation of the structure of MR with the purpose of verifying if there is a repetition of data. The aim of the study was to identify which variables explain the similarity between the MR that were published by companies listed in the Brazilian stock market. The results signalled that most of these companies had only specific modifications at their reports. The fact that other independent variables were not shown as explanatory at the obtained model may suggest that the maintenance of similar reports’ structures is a usual practice, regardless of their characteristics.