The 2026–27 Süper Lig runner-up market remains tightly contested early in the campaign due to the narrow gap between established Istanbul sides and a cluster of ambitious challengers. Galatasaray enters as four-time defending champions with a proven core including Victor Osimhen, yet Fenerbahçe’s major summer reinforcements in attack and defense position them as the clearest threat to repeat as runners-up. Beşiktaş and Trabzonspor, both active in the transfer window and showing early consistency, sit close behind in pre-season models, while mid-table clubs like Başakşehir, Göztepe, and Samsunspor carry realistic upside if the top two drop points amid European commitments. With only four matchdays completed and the title race projected to stay close, traders see multiple realistic paths to second place depending on squad depth, derby results, and fixture congestion.