Puma's stock fell 2.4% in Frankfurt Tuesday after soaring 20% the prior day, as reports said its top shareholder, the Pinault family, may sell its 29% stake via Artemis. Talks have reportedly involved Anta, Li Ning, US sportswear firms, and Middle East funds. Retail traders turned bearish on Puma's US shares, as the brand grapples with slowing demand and stiff competition from Nike and Adidas.