Fifth Third vs. Regions Financial — Q3 2026: Same Profitability, Opposite Headlines

Two regional banks, two very different quarters on paper

Fifth Third Bancorp and Regions Financial both reported third-quarter 2026 results in the past two days, and at first glance they look like they're moving in opposite directions. Fifth Third's net income jumped 36.2% to $828 million, yet its diluted EPS actually fell 1.1% to $0.90. Regions' net income rose a more modest 11.5% to $611 million, but its EPS rose 16.4% to $0.71 — faster than Fifth Third's profit growth, on a smaller profit increase. The gap isn't about which bank is run better this quarter. It's almost entirely about M&A math and buybacks, and once you adjust for Fifth Third's one-time merger costs, the two banks look a lot more alike than the headlines suggest.

Takeaway: Fifth Third's EPS fell because it paid for the Comerica acquisition in stock, adding shares as fast as profit; Regions' EPS rose because it bought shares back. Strip out Fifth Third's merger charges and the two banks' underlying profitability — adjusted efficiency ratio and adjusted ROTCE — are within a point or two of each other.

The numbers side by side

*Regions does not separately disclose an adjusted efficiency ratio; 56.2% is its reported figure, already close to Fifth Third's adjusted number.

Why the revenue and EPS lines tell different stories

Fifth Third's 42.5% revenue growth and 49.4% net interest income growth look dramatic until you remember the reason: its acquisition of Comerica closed February 1, 2026, adding a second bank's worth of loans, deposits and branches onto the balance sheet. Fifth Third's own earnings release says net interest income rose 49% "primarily reflecting the addition of Comerica," not organic growth. The deal was paid for in stock, so diluted shares outstanding rose 36.7% year over year — almost exactly matching the 36.2% rise in net income. The result: EPS of $0.90 is essentially flat with a year ago, even though the bank is nearly twice its former size.

Regions didn't make an acquisition. Its 3.0% revenue growth and 3.3% net interest income growth are what organic growth from a stable-sized bank looks like in this rate environment. Its EPS grew faster than its net income (16.4% versus 11.5%) for the opposite reason Fifth Third's lagged: Regions bought back stock, cutting its diluted share count 4.3%, so the same dollar of profit is now split among fewer shares.

Neither bank's EPS growth rate is a clean read on how the underlying business performed. Fifth Third's is held down by merger dilution that will fade as integration savings show up; Regions' is flattered by buybacks that have nothing to do with lending or fee income.

Once you normalize, the two banks converge

The more informative comparison is each bank's adjusted numbers, which strip out one-time items. Fifth Third's adjusted EPS was $1.13, up roughly 21% from a year-ago adjusted $0.93 by the company's own reconciliation. Its adjusted efficiency ratio — costs as a share of revenue, excluding merger charges — was 54.6%, actually better than Regions' 56.2% reported efficiency ratio (Regions doesn't break out a separate adjusted figure, but 56.2% is already a clean number with no acquisition in progress). Adjusted ROTCE was 20.6% for Fifth Third versus 21.3% for Regions — a one-point gap, not the seven-point gap the GAAP ROTCE figures (16.6% vs 21.3%) suggest.

Net interest margin is the one place a real, not merger-related, gap remains: Regions earns 3.68% on its interest-earning assets against Fifth Third's 3.34%. That 34-basis-point difference is before any acquisition effects and reflects each bank's own loan and deposit mix.

Both banks have the same rising-rates problem

One thing the headline EPS numbers hide at both banks: rising long-term rates widened unrealized losses on their bond portfolios this quarter, since bonds bought when rates were lower are now worth less on paper. Fifth Third's tangible book value per share fell 5% sequentially, to $22.01 from $23.22. Regions was hit harder — tangible book value per share fell 8% in the quarter, to $12.65 from $13.78. Neither loss affects regulatory capital (CET1 ratios, which exclude these unrealized losses, rose slightly or held steady at both banks), but it is the one blemish common to both reports and a reason neither bank can be judged on earnings alone this quarter.

A second shared caution: both banks' credit-quality improvement is flattered by last year's comparison rather than being purely cleaner lending this year. Fifth Third's net charge-off ratio fell from 1.09% to 0.31% largely because Q3 2025 included a single $178 million charge-off; excluding it, last year's ratio was 0.52%, making this year's actual improvement smaller than it looks. Regions' provision for loan losses fell to $68 million from $105 million, and the bank itself says roughly half of its $79 million rise in pre-tax profit came from that smaller provision rather than the business earning more.

What to watch next

Fifth Third's Q4 guidance points to net interest income up 2.5-3.5% and expenses down 2-3% from Q3 levels, which would be the first full quarter with Comerica's cost savings in place and no more conversion spending — the quarter that tests whether the deal's promised efficiency actually shows up in GAAP, not just adjusted, numbers. Regions kept its full-year guidance (net interest income up 2.5-4%, charge-offs toward the low end of 0.40-0.50%) and management is already signaling that its Q3 capital-markets fee income, at $107 million, was a high point rather than a new run rate.

For a reader comparing the two stocks rather than the two quarters: Fifth Third is the bigger, still-integrating bank whose reported numbers will look progressively cleaner each quarter as merger costs roll off, while Regions is the smaller, steadier bank whose current numbers are already close to its run rate — the EPS growth gap between them this quarter says more about where each is in its own cycle than about which bank is more profitable.