Nigeria, April 7 -- Zenith Bank reported only a slight rise in net profit and revenue for 2025 as interest income, its principal income source, grew at its slowest pace since 2021 while trading gains, which contributed as much as N1.1 trillion to gross earnings the year before, turned negative.

Post-tax profit for Nigeria's second biggest lender by assets and market value saw a flattish growth of 0.7 per cent during the period, climbing to N1.04 trillion from N1.03 trillion, according to its audited accounts out on Tuesday.

Turnover towed the same path, advancing by single digit from N4 trillion to N4.2 trillion.

The trend of relatively weak increase in interest income in percentage terms similarly played out in the results of tier-1 r...