FITB 10-K Analysis: The $875M Rate Bet Behind Fifth Third's Record Year
Fifth Third Bancorp delivered record FY2025 profitability — $6.0B in net interest income, NIM of 3.11%, EPS growth of 12.4%. But the 10-K filing reveals that nearly two-thirds of the NIM expansion came from an $875M interest expense reduction, not asset yield improvement. With the Comerica merger creating the 9th largest US bank and zero integration costs disclosed in the filing, the investment question becomes whether $400M in synergies can be captured before the rate tailwind turns.