This study proposes a model that combines the results of different MCDM techniques for assessing the financial performance of market-making banks between 2017 and 2020. In the decision process, 8 financial evaluation criteria were weighted with the CILOS technique and the performance ranking of 11 banks was made with the MARCOS technique. By using the COPELAND technique, the results of the ranking under the consensus order were combined and the final rankings of the primary dealer banks were reached. It was determined that the three best performing banks were Akbank, Garanti and HSBC, respectively, and the three worst performing banks were Yapı Kredi, Vakıf and Halk Bankası, respectively. It was determined that the direction of the rankings reached by the Sperarman rank correlation coefficient was positive and the relationship was high.