Arsenal's significant investment has paid off, with the club boasting the most improved squad. The Gunners' new additions have a combined value of €3.9m, surpassing the €3.5m of talent gained by London City Lionesses this summer. This highlights the impact the new players should have on the team's performance.

West Ham could argue they have added the most to their squad as the combined market value of their new players (€1.02m) is more than the corresponding amount for the players who remain from last season (€0.96m). The Hammers had to make additions as they lost players that contributed 6,322 minutes in the 2025-26 WSL, 29% of their total.