IS BANKASI (A) revenue for the last year amounted to 141.05 B TRY, the most of which — 113.77 B TRY — came from its highest performing source at the moment, Treasury Transactions and Investment Activities, the year earlier bringing 41.51 B TRY. The greatest contribution to the revenue figure was made by Turkey — last year it brought IS BANKASI (A) 250.97 B TRY, and the year before that — 141.39 B TRY.