Jon Martín

In April 2026, reports mentioned a Transfermarkt value of €20 million and a release clause set at €50 million, a figure also cited in March 2026. Previously, in August 2025, his market value was estimated by Transfermarkt at €8 million when he was linked with Arsenal. His internal promotion from Real Sociedad II to the first team in July 2024 did not have a reported fee.

Our valuation is driven by the consistently reported €50 million release clause in Jon Martín's long-term contract with Real Sociedad, which runs until 2031. This, combined with strong reported interest from Real Madrid, places his club in a powerful negotiating position. The estimate reflects a likely negotiated fee significantly above his market value but just below the full clause.