Nigeria, April 29 -- Banking group Guaranty Trust Holding Company's (GTCO) interest income rose to N458.5 billion from N386 billion, deriving strength from interest earned from loans and advances to customers, which was up by roughly a quarter.

The group posted a 15.4 per cent dip in net profit for the first three months of the year, compared to the same period of 2025, its newly issued financial report showed, reflecting the impact of mounting costs on earnings.

The financial services group recorded improvement across key income streams during the period, even though much of that was eroded by a twofold leap in income tax spending to N84.8 billion.

Net interest income, a key metric that measures the difference between revenues generat...