Porsche is holding a capital markets day on Monday where it could map out a renewed profit push. However, several fund managers remain concerned about Porsche's small free float of 12.5%, and a dual-class share structure that leaves little room for greater managerial independence. VW plans to sell a stake of as much as 25% of preferred shares that don't carry voting rights. The powerful billionaire Porsche and Piech clan, which controls VW through voting stock, would receive a special dividend to fund buying a blocking minority stake in Porsche.