CINTAS CORP (CTAS) stock intrinsic value fair value estimate & owner earnings analysis

Cintas rents and launders uniforms and facility supplies, and sells first aid and safety supplies and fire protection services, mostly in the United States, from route trucks that call on the same customers on a schedule. Revenue reached $11.26 billion in the fiscal year ended May 31, 2026 (up 8.9%), and the business has grown every year of the last ten, including the 2020 shutdown. The value comes from route density: each added stop on an existing truck earns a very high incremental margin. How we measure earnings. We start from operating cash flow and take out the swings in receivables, inventory, uniforms in service, payables and accruals, then deduct stock compensation and the capital spending needed to stand still. We deliberately kept one working-capital line in the cost: the prepaid and capitalized contract-cost line (a $174 million outflow in fiscal 2026), because its amortization is already added back in cash flow and removing both would erase a recurring sales-commission cost. On this basis owner earnings were $5.01 a share in fiscal 2026, $4.19 in 2025, $3.57 in 2024 and $1.22 in fiscal 2017, the year Cintas acquired G&K Services. To value the business before its lenders, we add back the roughly $100 to $106 million of cash interest paid each year. That gave $5.27 a share in 2026 and $4.44 in 2025. We anchor on the average of those two years, $4.86, rather than a longer window because the business after its recent margin gains and its higher capital spending (capex rose from $241 million in fiscal 2022 to about $400 million) is not what earlier years describe. Fiscal 2026 also had a $58 million deferred-tax benefit against a $6 million charge a year earlier; we treat that as timing, and averaging two years dilutes it. We did not review any quarter after May 31, 2026. The pending UniFirst purchase. Cintas has agreed to acquire UniFirst for $155 in cash plus 0.772 Cintas shares per UniFirst share (about $5.5 billion in total, per the filing). On UniFirst's 18.58 million diluted shares that is about $2.88 billion in cash, financed through committed bank facilities (a $2.85 billion bridge commitment, part of which has since been replaced by the revolving credit facility), and about 14.3 million new Cintas shares. UniFirst announced shareholder approval on June 12, 2026; according to company announcements the Federal Trade Commission has issued a second request for information, and Cintas owes a $350 million termination fee under certain circumstances. We treat the deal as closing in all three cases. UniFirst's own owner earnings have run between about $94 million and $148 million over its last five fiscal years (median about $127 million) with about $204 million of cash, and we credit it only that record, with no synergies in the bear or middle case. Valued that way UniFirst is worth less than Cintas pays, so the deal lowers every case by roughly $3 to $5 a share. Closing costs are not included because the filings reviewed do not quantify them. Debt. Cintas owes about $2.44 billion of senior notes: $1.0 billion at 3.70% due 2027, $400 million at 4.20% due 2028, $800 million at 4.00% due 2032 and a smaller 6.15% issue due 2036, an average of 4.1%. Nothing was drawn on its revolver or commercial paper at May 31, 2026. Because most of that debt carries fixed coupons well below what new borrowing would cost, we reduce it by about $114 million (our estimate), and we subtract the $289 million of cash, leaving net debt of about $2.03 billion, or $5.01 a share, before the UniFirst financing. Middle case: $116.38. Cash flow before lenders starts from the $4.86 anchor ($1.97 billion on today's share count) and grows 7% a year for three years, 6% for two, 5% for two and 4% for three, reaching about $3.37 billion in year ten. The fiscal 2026 growth in this measure was 18.8% per share (owner earnings per share up 19.6%); year one of our path is 7%, lower than that, so we are not assuming a re-acceleration, and it puts fiscal 2027 at about $5.20 a share, just under fiscal 2026's $5.27. The evidence behind the growth: revenue grew 7.3% a year from fiscal 2019 through 2026, which includes the 2020 shutdown, and 7.7% to 12.2% in each of the last five years; route-based recurring service is a mechanism run for decades. We left out margin expansion, share gains, and any benefit from buybacks (buybacks spend the same cash we are valuing). Part of historical growth was bought through small acquisitions of $165 million to $233 million a year that are not charged to owner earnings, which is why we start below the recent revenue growth rate and taper. After year ten we hold earnings flat rather than growing them, since nothing nameable supports more; about 60% of the value sits beyond year ten. The business is worth about $126 a share before debt, owes about $5 a share, and the UniFirst purchase subtracts about $4.60. Bear case: $69.85. Fiscal 2008 to 2010 is the reference downturn: revenue fell 6.0% in fiscal 2010 to $3.55 billion, operating income fell 8.6% in the nine months to February 2009 and another 4.5% in fiscal 2010, and the business then recovered above its fiscal 2009 level by fiscal 2011. Because today's margins are far higher than the roughly 11% of that era, a revenue drop cuts profit harder, so we model cash flow falling 15% and then 18% in years two and three (about 30% in total, to $1.43 billion), after 4% growth in year one, then recovering at 9%, 9%, 6% and 4%, followed by 3% a year, ending year ten only about 4% above today's level and flat afterwards. UniFirst gets the same downturn, with no synergies. Cintas on its own is worth about $79 a share before debt, owes about $5, and UniFirst subtracts about $4.60. Even at the trough, cash flow is far above interest on the roughly $5.3 billion of debt after the deal; the exposures are the $1.0 billion due in 2027, the $400 million due in 2028 and the acquisition financing, which would need to be refinanced in a weak market, but the evidence (the notes trade near face value, with fair value of $2.43 billion against $2.44 billion carried, and cash flow is ample) supports no worse than higher interest, which is small. Bull case: $136.02. Growth of 9% for three years, 8% for two, 7% for two, then 5% for three, in line with revenue growth that averaged about 9.4% a year from fiscal 2022 to 2026, with the demonstrated route-density economics intact. In addition, we credit $40 million a year of UniFirst savings from year four from combining overlapping routes (about 1.6% of UniFirst's revenue, a sliver of the gap between Cintas's owner-earnings margin of about 18% and UniFirst's of about 6%); this rests on route density and Cintas's earlier integration of G&K Services rather than a contract, which is why it appears only here. Cintas is worth about $144 a share before debt, owes about $5, and the UniFirst purchase subtracts about $3.30. What would make this wrong. With growth of only 3% a year for ten years, the middle value would be about $93.55; with no growth at all, $72.87; if earnings after year ten eroded 3% a year instead of holding, $91.54; if UniFirst earned 30% less than its record, $114.61. The previous estimate (dated September 1, 2026) was built on a different basis and its figures are not comparable. Margin-of-safety price: $62.00. The earnings level is well known: ten years of audited cash flow, recurring contract revenue, and a measure that held up in the 2020 shutdown. What is less certain is how long growth lasts and what the UniFirst deal does. The worst plausible outcome is an employment-driven recession arriving as the deal closes at full price with no synergies, leaving about $5.3 billion of debt, roughly 2.5 times fiscal 2026 cash flow before interest. Cintas's cash flow would still cover interest several times over, but refinancing the acquisition debt in a weak market could cost more. Outcomes not modeled include the FTC blocking the deal (a $350 million fee, about $0.86 a share) or requiring divestitures. If growth is only 3% the shares are worth about $94; if there is none, about $73. The price assumes a holding period of up to five years; the business paid $701 million in dividends in fiscal 2026 (about $1.73 a share), up from $531 million two years earlier. From $62, if value reaches our middle estimate within five years, the implied return is about 20% a year; if the bear path plays out instead, about 9% a year, and the price is below even the no-growth value. A higher price would depend on the middle case's growth lasting.