The Turkish Competition Authority issues interim measures against a leading marketplace platform for its use of algorithms and third-party data to benefit its own offerings (Trendyol)

This case summary includes an analysis of the Turkish Competition Board’s (“Board”) Trendyol Interim Measure decision [1] in which the Board, upon the findings of its preliminary investigation, determined that DSM Grup Danışmanlık İletişim ve Satış Ticaret A.Ş.’s (“Trendyol”) use of algorithms and handling of third-party data were aimed at favouring its own products and discriminating between sellers on its platform, and decided to impose interim measures to address the alleged misconducts of Trendyol, as per Article 9 of the Law No. 4054 on the Protection of Competition (“Law No. 4054”), since these practices could lead to serious and irreparable damage to competition until the final decision is rendered. Background The Board’s preliminary investigation into Trendyol’s practices,