By Marim Sanni Nine commercial banks in Nigeria recorded an aggregate operating expense of N874.8bn in the first half of the year. https://aljazirahnews.com/wp-content/uploads/2021/06/cbn-keep-the-naira-clean.gif This figure indicates an increase of N51.9bn from the total OPEX of N822.9bn recorded in the corresponding period of 2020. The banks are United Bank for Africa, Access Bank, First Bank Holdings, GTBank, Zenith Bank, Fidelity Bank, Sterling Bank, Union Bank and First City Monument Bank.