ABSTRACT Abstract: This paper examines the effect of Capital Adequacy and Operational Efficiency on profitability of Deposit Money Banks (DMBs) in Nigeria for the period of 2008-2016 using panel data of 15 listed banks drawn from the Nigerian stock exchange. The independent variables were proxied by Capital Adequacy and Operational Efficiency while profitability was proxied by Return on Assets (ROA). The study adopts correlational research design to examine the effect of the bank specific fa...