10. Ajax
Market value - £322.76m
Purchase value - £107.82m
Difference - £214.94m
The masters of buying low and selling high. But Hakim Ziyech's move to Chelsea and Donny van de Beek's likely exit will see Ajax's 'market value' take a huge hit.
9. Real Sociedad
Market value - £288.45m
Purchase value - £58.73m
Difference - £229.73m
What makes Sociedad's ranking here even more impressive is the fact that Martin Odegaard (£40.5m) isn't even included in their 'market value' due to the fact he's on loan from Real Madrid. Mikel Oyarzabal (£43.2m) makes up for the Norwegian's absence.
8. Atletico Madrid
Market value - £639.18m
Purchase value - £403.11m
Difference - £236.07m
Jan Oblak (£72m) and Saul Niguez (£64.8m) are the primary reasons why Atleti's 'difference' is so high, especially after they spent over £100m on Joao Felix.
7. Chelsea
Market value - £610.20m
Purchase value - £360.81m
Difference - £249.39m
N'Golo Kante (£72m) and Mason Mount (£36.45m) really help the Blues out here. The impending arrivals of Ziyech and Timo Werner will certainly see the club's 'difference' decrease.
6. Inter Milan
Market value - £498.02m
Purchase value - £235.61m
Difference - £262.40m
Lautaro Martinez (£57.6m), Christian Eriksen (£61.2m), Stefan de Vrij (£43.2m) and Milan Skriniar (£43.2m) were all signed for a fraction of their valuation, hence why Inter sit in sixth spot.
5. Borussia Dortmund
Market value - £527.60m
Purchase value - £251.04m
Difference - £276.56m
Haaland and Jadon Sancho were signed for a combined total of around £25m. They're now worth close to £200m as a pair. Do we need to say anymore?
4. Tottenham
Market value - £642.96m
Purchase value - £357.89m
Difference - £285.08m
Harry Kane didn't cost Spurs a penny and he's worth £108m right now. Dele Alli cost £5m and is now worth £57.6m, so it's not actually that surprising to see Jose Mourinho's side sitting comfy in fourth.
3. RB Leipzig
Market value - £470.32m
Purchase value - £157.39m
Difference - £312.93m
Dayot Upamecano, Ibrahima Konate, Lukas Klostermann and Marcel Sabitzer were all signed on the cheap and have seen their values rapidly increase of late. The loss of Timo Werner (£57.6m) will see Leipzig drop a few places on this list in due course.
2. Bayern Munich
Market value - £681.64m
Purchase value - £320.85m
Difference - £360.79m
Sensational on the pitch and incredibly wise off of it. Robert Lewandowski, Serge Gnabry, Joshua Kimmich and Alphonso Davies were all signed for pennies and are all now worth £40m+ - that's how you run a football club.
1. Liverpool
Market value - £881.51m
Purchase value - £497.93m
Difference - £383.58m
Is there anything Liverpool can't do? Sadio Mane and Mohamed Salah are both worth £108m, while academy product Trent Alexander-Arnold and Andy Robertson are worth £150m combined. No wonder Jurgen Klopp's team are the best in the world!
Liverpool and Bayern are streets ahead of the rest right now and given their form on the pitch, their market values are only going to increase.
Manchester United, Manchester City and Real Madrid all miss out on the top 20...