Olympiacos (Super League Greece): every transfer in and out, fees paid and earned, squad market value, €154m spent and €97m earned. Tracked squad: ACTUAL Value €130m, in line with the market. Valued as of 2026-08-26.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2026-08-22 | Armando González | Atlas Guadalajara | Olympiacos | €8.6m |
| 2026-08-22 | Mehdi Taremi | Olympiacos | Al-Wasl | €400k |
| 2026-08-20 | Pablo Maffeo | Olympiacos | Valencia CF | Loan |
| 2026-08-18 | Nair Tiknizyan | Crvena Zvezda | Olympiacos | €6m |
| 2026-08-18 | André Luiz | Olympiacos | Sporting Kansas City | €16m |
| 2026-08-17 | Remo Freuler | Bologna Football Club 1909 | Olympiacos | Free |
| 2026-08-08 | Georgios Masouras | Olympiacos | Neom Sports Club | Free |
| 2026-08-06 | Francisco Ortega | Olympiacos | Club Atlético River Plate | €5m |
| 2026-08-06 | Gabriel Strefezza | Olympiacos | Palermo FC | €4m |
| 2026-08-05 | Konstantinos Tzolakis | Olympiacos | Hull City | €23m |
| 2026-07-30 | Gustavo Sá | Nottingham Forest | Olympiacos | Loan |
| 2026-07-30 | Antonis Papakanellos | Olympiacos | A.G.S Asteras Tripolis | Loan |
| 2026-07-29 | Stefan Ortega | Nottingham Forest | Olympiacos | Free |
| 2026-07-24 | Manolis Saliakas | FC St. Pauli | Olympiacos | €1.3m |
| 2026-07-23 | Jefté Betancor | Olympiacos | UD Las Palmas | Free |
| 2026-07-18 | Joel Roca | Girona FC | Olympiacos | €5m |
| 2026-07-15 | Diogo Nascimento | Olympiacos | Rio Ave FC | Loan |
| 2026-07-09 | Jota Silva | Nottingham Forest | Olympiacos | Loan |
| 2026-07-06 | Zinedin Smajlović | Sandefjord Fotball | Olympiacos | €5m |
| 2026-07-03 | Balsa Popovic | Crvena Zvezda | Olympiacos | €1.5m |