Research News
Top training clubs for big-5 league players
CIES Football Observatory presents the clubs having trained* the highest number of footballers who played in the big-5 during the current season.
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Transfer values: global top 100
Lamine Yamal continues to be the most expensive player in the world according to the CIES Football Observatory’s statistical model.
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Best non-big-5 league players born in 2006 or later
100 players worldwide born in 2006 or later who are not yet playing for a big-5 league club having performed best this year.
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Most physically robust outfield players
CIES ranks most physically robust outfield players: Júnior Alonso leads; Vanaken, Otamendi follow. Colombia leads overall stats.
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Rising values: highest expected increases
Discover the 169 players whose transfer value is projected to rise most over the next six months.
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Vertical play masters: best U23s
Jorne Spileers tops U23 progressive passers worldwide, followed by Huijsen and António Silva, with young standouts like Volden and Zaïre-Emery.
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Player trading champions: Eintracht at the top
The world’s smartest clubs on the transfer market since January 2021 in terms of the financial balance sheets of players recruited as professionals.
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2025 Migration Report highlights ongoing surge in International Transfers
FIBA/CIES 2025 report shows global basketball transfers surging to 13,555, setting new records in men’s and women’s moves.
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Best development leagues for young domestic players
The 522nd CIES Football Observatory Weekly Post ranks 50 top divisions worldwide according to the percentage of minutes played.
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