Nigeria, Nov. 7 -- Nigeria's five biggest banks - Access Corporation, Zenith Bank, United Bank for Africa (UBA), Guaranty Trust Holding Company (GTCO), and First HoldCo have collectively earned a staggering N4.8 trillion in interest income from fixed-income securities within the first nine months of 2025.

Data obtained from their financial statements filed with the Nigerian Exchange (NGX) reveal that the banks' combined investment in government bonds and treasury bills soared to N49.15 trillion by September 2025, marking a 16.5 percent increase from N42.20 trillion recorded at the end of December 2024.

By individual performance, Access Corporation led with N15.25 trillion invested in securities, followed by UBA with N13.59 trillion, Zen...