A B S T R A C T According to Surat Edaran No. 3/30/DPNP dated December 14, 2001, the ratio of return on assets can be measured by the ratio of profit before tax to total assets. The greater the return on assets would indicate the higher profitability. This means that the bank's financial performance is getting better. This study aims to examine the effect of capital adequacy ratio, loan to deposit ratio, non-performing loan, operational cost ratio and net interest margin of the return on

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... The results showed no effect of non-performing loans, operational cost ratio and net interest margin on profitability. Capital adequacy ratio, loan to deposit ratio proved no significant effect on profitability. This study contributes about factors that affect the profitability of the banking industry. A B S T R A K Menurut Surat Edaran BI No. 3/30/DPNP tanggal 14 Desember 2001, rasio return on asset dapat diukur dengan perbandingan antara laba sebelum pajak terhadap total aset. Semakin besar return on asset akan menunjukkan profitabilitas yang tinggi. Hal ini berarti kinerja keuangan bank semakin baik. Penelitian ini bertujuan menguji pengaruh capital adequacy ratio, loan to deposit ratio, non performing loan, operational cost ratio dan net interest margin terhadap return on assets. Hasil penelitian menunjukkan ada pengaruh non performing loan, operational cost ratio dan net interest margin terhadap profitabilitas. Capital adequacy ratio, loan to deposit ratio terbukti berpengaruh tidak signifikan terhadap profitabilitas. Penelitian ini memberikan kontribusi tentang faktor-faktor yang mempengaruhi prifitabilitas pada industri perbankan. JEL Classification: G14, M21