The CAC 40 Index dropped 25 points or 0.29 percent on Thursday to close at 8650 points. Losses were led by Dassault Systemes (-2.24%), Safran (-1.90%) and STMicroelectronics (-1.67%). Offsetting the fall, top gainers were Danone (1.43%), Sanofi (1.24%) and Edenred (0.94%).