Fifth Third’s Two-Quarter Margin Expansion Ended

The Tip Desk · October 20, 2026 · 3 min read

Fifth Third’s net interest margin narrowed to 3.34% in the third quarter, while deposit growth helped reduce reliance on wholesale funding.

Fifth Third Bancorp (FITB), the U.S. banking company integrating Comerica, ended two quarters of net interest margin expansion as funding costs weighed against higher asset income. Third-quarter margin narrowed 2 bps to 3.34%, following sequential increases of 17 bps in the first quarter and 6 bps in the second. The reversal interrupted the margin improvement.

Net interest income nevertheless increased 3% QoQ to $2.28 billion on a fully taxable-equivalent basis. Fifth Third attributed the increase to higher market rates, fixed-rate asset repricing, investment portfolio management, and loan growth. The bank said higher deposit costs partly offset those benefits, including costs associated with former off-balance-sheet Comerica investment sweep balances moving into interest-bearing deposits. Income growth therefore continued even as the margin narrowed.

The deposit inflow carried a funding benefit alongside that cost pressure. Average deposits rose 3% QoQ to $238.3 billion, with Fifth Third citing operational deposit growth, its Southwest retail campaign, and the sweep-balance migration. Core deposits averaged $235.6 billion. The bank said deposit growth improved its funding mix and supported a reduction in wholesale funding, which averaged $23.3 billion. Lower long-term debt and Federal Home Loan Bank advances accounted for most of that reduction.

Average portfolio loans and leases rose 1% QoQ to $179.2 billion. Commercial loans and leases averaged $125.6 billion, while consumer loans averaged $53.7 billion. Fifth Third attributed the sequential portfolio increase principally to commercial lending, with consumer balances broadly stable. At period-end, commercial originations were led by construction and commercial and industrial lending, partly offset by elevated payoffs.

Fee businesses supplied a separate source of revenue, although market volatility affected transaction activity. Reported noninterest income totaled $1.01 billion. Wealth and asset management generated $259 million, commercial payments $256 million, and consumer banking $158 million. Fifth Third said wealth revenue benefited from institutional trust and personal asset management, while deposit-fee growth in commercial payments was offset by higher earnings credits.

Capital markets fees were $147 million. The bank attributed weaker advisory and loan-syndication activity to late-quarter market volatility, which more than offset higher corporate bond fees. Mortgage banking generated $47 million and commercial banking $128 million. Excluding specified items, total noninterest income increased 1% QoQ to $1.05 billion, distinguishing the underlying fee result from reported revenue affected by litigation, merger charges, and securities marks.

Expense control provided another offset to the margin reversal. Noninterest expense was $2.05 billion, including $215 million of merger-related charges. Excluding specified items and non-qualified deferred compensation, expense declined 2% QoQ to $1.82 billion. Fifth Third attributed the reduction in reported expense primarily to lower compensation and benefits. Technology-related asset impairments and interchange litigation also remained among the adjustments separating reported costs from the bank’s adjusted measure.

Net income available to common shareholders was $828 million, or $0.90 a share. Adjusted earnings were $1.13 a share after excluding merger-related charges, interchange litigation matters, and technology-related asset impairments. Those exclusions left a material gap between reported earnings and the adjusted profitability measure management used to describe the combined company’s performance.

Credit costs remained contained in the bank’s assessment. Net charge-offs were 31 bps, and the provision for credit losses was $122 million. The allowance totaled $3.1 billion, equivalent to 1.74% of portfolio loans and leases. Fifth Third described credit quality as stable and attributed the modest reduction in its allowance ratio to improvement in the commercial risk profile.

Fifth Third completed the Comerica systems conversion during the quarter, with Chief Executive Tim Spence reporting strong client and banker retention. Its estimated CET1 capital ratio was 10.02%, and it made no common-share repurchases during the quarter. With conversion completed, Spence warned that competition for deposits was heating up.

Source: Fifth Third Bancorp quarterly earnings releases.