FINANCIAL INSTITUTIONS INC (FISI) stock intrinsic value fair value estimate & owner earnings analysis

Financial Institutions, Inc. is the Warsaw, New York holding company for Five Star Bank: 48 branches across fourteen contiguous counties of Western and Central New York, about $5.3 billion of deposits and $4.7 billion of loans, plus commercial lending offices in Syracuse and the Baltimore area and a wealth-management arm, Courier Capital. About two-thirds of the loan book is commercial business and commercial real estate lending, roughly 17% ($807 million) is indirect auto loans made through franchised new-car dealers, and about 16% is residential mortgages and home-equity lines. How we measure earnings. For a bank, the cash a shareholder can actually take out is net income available to common shareholders: loan-loss provisions are a real cost, branch spending roughly equals depreciation, and stock pay is already expensed. Operating cash flow is not useful here because it swings with loan sales and accruals (in 2025 it was $18.8 million against net income of $74.9 million). Two small legacy preferred issues take about $1.46 million a year ahead of the common, and we deduct that. On that basis, per-share earnings over the last ten years were $2.10, $2.13, $2.39, $2.96, $2.30, $4.78, $3.56, $3.15, a loss of $2.75 and $3.61 (2016 through 2025). Two years are not representative. 2021 was inflated by releasing pandemic loan-loss reserves. 2024 was a deliberate loss: the bank sold about $650 million of low-yielding securities at a $100 million loss, sold its insurance agency, absorbed a loss from a deposit-related fraud by a business customer that the company disclosed in its annual report and a $23 million settlement of long-running auto-lending litigation, then raised common equity. Share count went from about 15.7 million to about 20 million. The starting level. Measured as a return on common equity, the bank earned a median of roughly 11% in the normal years of the past decade, and 12.0% in 2025 and about 13% in the first half of 2026 (two quarters at $1.04 a share each), after the securities sale was reinvested at higher yields. Net interest income rose from $164 million in 2024 to $200 million in 2025. We start from $3.80 a share, about 12% on today's common equity of roughly $31.80 a share. That sits between the decade-long record ($3.56 at 11.2%) and the two post-restructuring readings, because the improvement in the bond book is real and visible in the accounts but has only about six quarters behind it. Earnings rose about 15% from 2023 to 2025, and the first half of 2026 is running about 23% ahead of the first half of 2025. Our base case assumes only 2% for the first year, well below those figures, so it does not depend on the recent pace continuing. Base case, about $67 a share. Earnings grow about 2% a year, close to the bank's long-run pace of deposit and loan growth in a slow-growing region. That growth is paid for by retaining part of the earnings at a roughly 11.5% return, so about 17% of each year's earnings is kept to support it and the rest is available to owners. In year four the base case includes an ordinary downturn like 2020, when per-share earnings fell 22% as provisions tripled. After year ten we credit only today's earnings power continuing without further growth. What sustains it is the core deposit franchise: dense rural and small-city branches in upstate New York that have kept funding the bank through the 2008 crisis, 2020 and the 2023 regional-bank panic. Bigger lenders compete for the same customers, so we give the bank no credit for winning share. Bear case, about $42 a share. This case runs a full credit cycle sized on the 2008 to 2010 experience of commercial-heavy regional banks, together with a 2008-type spike in auto-loan losses. Over three years, provisions total about $235 million, roughly 5% of loans. That is far worse than the bank's own record, since upstate New York came through 2008 to 2010 comparatively well. Per-share earnings fall to about $1.20, then to zero, then recover through $1.70 and $2.60. Afterwards the bank settles at a permanently lower $2.76 (about a 9% return on equity) and does not grow. With pre-provision earnings of about $100 million a year and $643 million of equity, the bank absorbs those losses from income without falling below its capital requirements, so we assume no forced share issuance. The bear case value is above tangible book value of about $28.80 a share. We think that is justified because the low-cost deposit base keeps earning a spread once loan losses pass, as it did after both 2008 and 2020. The risk this case does not capture is another balance-sheet management mistake on the scale of 2024. Bull case, about $78 a share. The improvement after the restructuring holds: the bank keeps earning about 13% on equity, as in the first half of 2026, starting from $4.00 a share. Commercial lending through the Syracuse and Baltimore-area offices keeps growing loans at about 4.5% a year, near the pace of the last decade, and that growth is funded from retained earnings. We do not assume a rising margin, acquisitions or wider market recovery. Debt. For a bank, deposits and borrowings are raw material, and their interest cost is already inside the earnings we value, so no debt is subtracted. Borrowings are small: about $79 million of long-term debt (mostly subordinated notes) and $182 million of short-term borrowings at June 30, 2026, against $5.3 billion of deposits. Leverage risk is carried in the bear case. Margin-of-safety price, $32. How sure are we of the earnings level? Moderately. The decade's normal years cluster tightly between an 8% and 14% return on equity, and the recent improvement is visible in reported net interest income. But the bank needed a costly securities restructuring only two years ago, and in 2024 also took the disclosed fraud loss and a litigation charge, so the balance sheet has a recent blemish. The worst plausible outcome is a commercial real-estate downturn concentrated in Rochester and Buffalo, combined with an auto-loan loss spike and another forced sale of underwater securities. The bank has no single dominant borrower or customer and holds about $626 million of common equity, so it would survive that, but earnings could be near zero for two to three years. If we are wrong about the two things we are most likely to be wrong about, that the 12% return holds and that credit stays near its record, the shares are worth roughly the low forties, close to the bear case. During the holding period, the bank pays $1.28 a share a year in dividends. Measured against $32, that is roughly a 12% earnings yield and about 4% in cash dividends. If the value reaches about $50 within three years, which is well short of the base case, the implied return including dividends is about 20% a year. If the bear case plays out instead, it implies roughly breaking even on tangible book plus the dividend. Above about $32, the 20% target would depend on the base case arriving promptly rather than merely eventually. Change since the previous analysis. The previous figures were prepared on a different basis and are not comparable. On the business itself, the first half of 2026 confirmed that the 2025 earnings recovery is holding, and that is the main reason the starting level is higher.