Weekly market update: The Christmas rally struggles to materialise

Up: Affirm Holdings +13.34%: the U.S. specialist in installment payments and financing solutions reassured investors during a call with analysts. Volume growth is strong, the group is gaining market share, and strategic partnerships with major players in commerce and technology are multiplying. IG Group +12.92%: the British company operating online trading platforms is strengthening its share buyback program as business momentum remains very strong. Activity is supported by the acquisition of many new clients, solid outlooks, an expanded offering, and gains from marketing campaigns. DBV Technologies +11.8%: the biopharmaceutical company specializing in treatments for food allergies announced the success of…