GTCO had the strongest profit conversion among listed Nigerian banks reviewed in 2025, turning 40.3% of gross earnings into profit after tax.
That means for every ₦100 GTCO earned, about ₦40 became profit. Stanbic IBTC followed with ₦33.5, while Wema Bank and Jaiz Bank each converted about ₦29 of every ₦100 earned.
The ranking shows that bigger earnings did not always mean stronger profit conversion. Zenith Bank recorded the highest profit after tax in absolute terms at ₦1.04 trillion, but converted 24.8% of gross earnings into profit.
First HoldCo had the lowest conversion rate, with only ₦4.1 of every ₦100 earned becoming profit after tax.





