Guaranty Trust Holding Company (GTCO) habours a bank of silent riddles. Nigeria's most admired bank closed 2025 with N1.23 trillion pre-tax earnings, a near-new cost-to-income ratio of 27.9 per cent, and a capital adequacy ratio of 43.8 per cent. These metrics would make even a Swiss private banker blush. However, the number that tells the real story is far less flattering as the loan-to-deposit ratio of is only 24.3 per cent.