The 408th CIES Football Observatory Weekly Post presents the net spending (including add-ons) for transfers concluded over the last five seasons by the 100 clubs with the highest volume of trade. Chelsea has the most negative balance with a deficit of €749m, of which a record €620m during the current season, ahead of Manchester United (-€670m) and Arsenal (-€544m). Ninth-placed Juventus has the biggest deficit among non-English clubs (-€337m).

Issue 407 of the CIES Football Observatory Weekly Post presents the players who have performed best in the area of take on over the past year on the basis of an exclusive index based on 100 taking into account the frequency of successful dribbles and crosses, playing time, as well as the sporting level of matches played. Ousmane Dembélé (Barcelona) tops the list among attacking players and João Cancelo (Manchester City) among defending ones.

Issue 406 of the CIES Football Observatory’s Weekly Post presents the 50 clubs that spent the most on the player market during the current and last summer’s transfer windows. Chelsea crushes the competition with €555 million invested (including add-ons) to acquire 15 footballers. This is more than double the amount spent by the second biggest spender: Manchester United (€272 million for 7 players).

The 405th edition of the CIES Football Observatory Weekly Post ranks 417 teams from 27 European top divisions according to the percentage of minutes played by club-trained footballers, i.e. present for at least three years between the seasons of their 15th and 21st birthdays. The highest proportions were measured for the Slovakians of MŠK Žilina in total (73.3% of minutes by 16 players trained) and Athletic Club in the big-5 (56.6%; 13).

Issue number 404 of the CIES Football Observatory Weekly Post presents sixty players whose contracts end next June with the highest Impact Score in their age group. The French Evan N’Dicka (Eintracht Frankfurt) tops the list among footballers who have not yet turned 23, the Spaniard Marco Asensio (Real Madrid) for those aged between 24 and 26, as well as Adrien Rabiot (Juventus) for players between 27 and 30 years of age.

Jude Bellingham heads the list of the 100 players worldwide with the top estimated transfer value according to the statistical model exclusively developed by the CIES Football Observatory research team. His owner club, Borussia Dortmund, could potentially earn up to €208m by transferring the 19-year-old English prodigy. With Bellingham’s contract running out in June 2025, this is probably the transfer window during which the Germans could make the biggest profit.