CASS INFORMATION SYSTEMS INC (CASS) stock intrinsic value fair value estimate & owner earnings analysis

Cass Information Systems (St. Louis) pays other companies' freight, utility, waste and similar bills for large corporate clients and owns a small bank, Cass Commercial Bank. Clients send Cass the money to pay their invoices; the average balance of those client funds ("accounts and drafts payable") was about $1.16 billion in 2025, and the bank holds a further $1.2 billion of deposits, of which $513 million pays no interest. Cass invests that money in loans ($1.06 billion), bonds ($771 million) and cash, and keeps the interest, in addition to processing fees ($66.1 million in 2025) and financial fees charged for paying carriers early ($40.4 million). Net interest income was $81.2 million in 2025, up from $67.8 million in 2024 as the net interest margin rose to 3.83%. Cass has no borrowings, and its funding is the raw material of the business, so we value earnings after interest and subtract no debt. How we measure earnings. Movements in client funds sit outside Cass's operating cash flow, so we started from operating cash flow, removed working-capital swings, and deducted stock compensation and maintenance capital spending. Two bank-specific judgements lowered the result: bad-loan costs are treated as a recurring expense, and so is the amortization of premiums Cass pays when it acquires bonds, because that premium is a real cash cost paid up front. Owner earnings per share on that basis were: 2016 $1.47, 2017 $1.96, 2018 $1.82, 2019 $2.31, 2020 $1.82, 2021 $2.01, 2022 $2.43, 2023 $1.42, 2024 $1.07, 2025 $2.57. Two years were distorted. In 2023 and 2024 capital spending was unusually high ($11.9 million and $8.5 million, versus $5.7 million in 2025), and 2024 also absorbed a $7.8 million write-off for a client, Rubicon, that failed to reimburse invoices Cass had paid for it. In March 2025 Rubicon settled with a $2.0 million payment and a $5.0 million note; the $2.0 million boosted 2025. The starting point. The seven years from 2019 span near-zero rates, the rate rise and today's higher rates, and have a median of $2.01. Cass sold its telecom expense management unit on June 30, 2025 (it generated roughly $0.11 to $0.16 per share of operating cash flow in 2023-24), while bond-premium amortization fell from $3.6 million in 2024 to $1.0 million in 2025 after Cass sold $34 million of low-yielding bonds at a $3.5 million loss in June 2025. The two roughly offset, so we use $2.00 per share. Owner earnings rebounded 140% in 2025 (from $1.07 to $2.57), but the base case does not extrapolate that: year one starts at the $2.00 level, below the trailing rate. Net income averaged about $8.6 million a quarter in the second half of 2025 and was $8.8 million and $10.6 million in the first two quarters of 2026 ($19.4 million for the half, against $17.8 million a year earlier, which included a $3.6 million gain on the telecom sale and the $3.5 million bond loss). That supports the level but is not yet enough to move the starting point. Base case, $33.33 per share. Earnings stay at $2.00 per share indefinitely. We credit no growth. Buybacks add nothing on top because the earnings are already counted in full per share. We left out growth from utility and energy volumes (facility invoice volumes grew 25.4% in 2024 and were flat in 2025) and from new clients because neither is contracted. The record supports flat rather than falling: financial fees fell from $45.3 million (2023) to $40.4 million (2025) as freight carriers consolidated and facility vendors changed how they are paid, yet owner earnings ranged from $1.07 to $2.57 over 2019-2025 with a $2.01 median, because higher interest income offset the fee decline. Cass has run this payment-and-float model through the 2020 downturn and the 2022-2025 rate cycle with profits every year, which is why we assume the level persists rather than fades. Bull case, $43.33. Earnings run at $2.60 per share, a little above 2025's result without the one-time recovery (about $2.46), in line with the stronger first-half 2026 pace, with no growth credited. This is what happens if the current 3.83% net interest margin holds and fees stabilize. Bear case, $16.80. A story with named parts: (1) a credit cycle like 2008-2010: cumulative loan losses of 4% of the $1.06 billion book over three years (about $42 million, against a $13.6 million reserve), costing about $0.57 per share in each of years 2 to 4; (2) rates falling back to the near-zero levels of 2020-21, when net interest income was $44 to $45 million against $58.8 million in 2022 and $81.2 million in 2025; we assume a drop of about $12 million a year, roughly $0.70 per share after tax, in years 2 to 7; (3) another client loss like Rubicon on the $164.5 million of payments Cass makes ahead of being reimbursed by clients ($0.45 per share, year 3); and (4) financial fees continuing to erode at their recent 5.6% yearly pace, costing about $0.67 per share by year 10 and $1.05 by year 20 after reinvesting the freed funds and some cost savings. Earnings fall to $0.60 in year 2 and $0.08 in year 3, recover to about $1.46 by year 8, and settle near $0.95 from year 20. Shareholders' equity of about $243 million (about 9% of $2.6 billion of assets) absorbs the losses without new shares, though the dividend would be cut. This value is about equal to tangible book value of roughly $17 per share, so in this case the franchise is worth about its capital rather than more. Debt. Cass owes no borrowed money in any case, so what the business is worth and what the shareholders own are the same figure: $33.33 base, $43.33 bull and $16.80 bear. Stress tests. If capital spending stays at the first-half 2026 pace ($5.0 million versus $3.9 million a year earlier), the earnings level would be about $0.35 per share lower; the starting point already includes the high-spending 2023 and 2024. Management's own rate test shows net interest income falling 10.6% (about $8.6 million) if rates drop 300 basis points, so our bear case, at about $12 million, is harsher than management's test. Margin-of-safety price, $21.00. We are fairly, not fully, sure of the earnings level: ten years of owner earnings ranged from $1.07 to $2.57, and the swings came from rates, capital spending and one client loss. The worst plausible outcome is the bear case plus things no case models, such as a major client moving its processing elsewhere (which would shrink the client funds Cass invests) or a cyber failure in a payments business. Cass has no debt and a capital cushion of about $243 million, so it would survive that, though its dividend might not. If we are wrong about the earnings level in the optimistic direction the shares are worth about $43; if we are wrong about fees and rates in the pessimistic direction they are worth about $17, near tangible book. The price assumes a three-to-four-year holding period, during which Cass pays about $1.25 per share a year in dividends (it paid $1.25 per share in 2025). At $21.00 the dividend alone is about 6% a year, and if the base case holds, three years of dividends plus a value of $33.33 imply about 21% a year, while the bear case implies a value near tangible book value. At a higher price the cushion against a repeat of 2023-2024, a credit cycle or lower rates is too thin to support a 20% return. Change since our previous analysis. Our earlier estimates (bear $22, base $44, bull $64, margin-of-safety price $25.50) were built on reported net income with assumed growth and are not comparable with these figures. The business facts behind this update are mixed: first-half 2026 profit was higher, but capital spending is running above its normal level and financial fees shrank again in 2025.