At 08:15 GMT, Vivendi shares were up 11.63%, against a CAC 40 up 1.53%.
In a press release issued on Wednesday, the group explained that the management board had proposed to the supervisory board a project to split the group into several entities.
"Vivendi is suffering from a very high conglomerate discount, significantly reducing its valuation and thus limiting its capacities," the group explained. (Redaction Corentin Chappron, edited by Kate Entringer)