ROGERS CORP (ROG) stock intrinsic value fair value estimate & owner earnings analysis

Rogers Corporation makes engineered materials that go inside other companies' products. Its Advanced Electronics Solutions segment ($445M of 2025 sales) sells circuit laminates for radar, wireless base stations and aerospace, curamik ceramic substrates and busbars that carry and cool power in electric-vehicle drivetrains and industrial power modules. Its Elastomeric Material Solutions segment (about $350M) sells PORON and BISCO foams and silicones used for sealing, cushioning and battery pads in cars, phones and industrial equipment. These are specified-in parts: once a material is qualified into a customer's design it tends to stay for the life of that program, which makes the business durable but cyclical, because volumes follow car builds, base-station rollouts and customer inventory swings. What the business earns. We measure the cash an owner could take out each year: operating cash flow, less the timing effect of working capital, less stock pay, less the capital spending needed to keep the plants running. On that basis Rogers earned about $72M-$125M a year from 2016 to 2021, then fell sharply: roughly $57M in 2023, $8M in 2024 and $30M in 2025. Two accounting judgements matter. First, reported operating cash flow in 2024 and 2025 ($127M and $101M) was flattered by $50M and $31M of cash released from shrinking inventory and receivables; that is a one-time release, not earning power, so we strip it out. Second, 2023 included roughly $26M after tax of insurance recoveries from the 2021 fire at the UTIS plant in Korea, which will not recur. 2022 is excluded entirely because it contains the $162.5M fee DuPont paid when its takeover of Rogers was blocked. The $71.8M curamik goodwill impairment in 2025 is non-cash and does not reduce owner cash, but it is a signal that the company itself expects lower long-term margins in that business, and we carry that in the cases below. Normal level. Taking 2019 through 2025 (skipping 2022) covers a full cycle: a 2020 trough, a 2021 peak and the 2023-2025 downturn. The middle of that range, with 2023 cleaned of the insurance money, is about $54M a year before interest, or about $3.00 per share on today's 17.9M shares. Rogers has no borrowings on its $450M credit line, so interest is negligible. 2026 is running ahead of 2025: first-half sales rose about 6% (Q1 $200.5M, Q2 $216.8M) and the company earned $30.7M of operating profit versus a loss a year earlier, with restructuring costs down to $6.6M. In 2025 owner cash roughly quadrupled off a very low 2024 base; we assume only $45M for 2026 (about +50%) and a return to the $54M normal level from 2027, which is a level the business has already reached, not new growth. What is not credited. Management's September 30, 2026 Investor Day targets ($1.05B of sales in 2028 and $1.5B in 2030, driven by AI data-center power and battery applications) are not in any case. The company says first data-center design wins are expected within two quarters and revenue in the second half of 2027; nothing has been booked or contracted yet, so it does not meet our evidence bar. Sales growth from EV recovery, share gains or margin expansion is likewise left out. Rogers' past growth came mostly from acquisitions (Arlon, DeWAL, Griswold, Silicone Engineering), but per-share cash earnings did not rise over the decade, so that record does not support crediting further growth. Base case, about $52 per share. Owner cash of $45M in 2026 and $54M a year from 2027 through 2035. After that, the elastomer and laminate franchises, which have been sold for decades on the strength of qualification into long-lived customer programs, keep earning about $40M a year, while the roughly $14M tied to curamik ceramics fades away over the following ten years because of the price competition the 2025 impairment reflects. Discounted at 6%, the business is worth about $790M; it owes only about $8M in finance leases and holds $211M of cash and short-term investments, of which we treat $60M as needed to run the business. Business $790M plus about $143M net cash gives roughly $933M, or $52 per share. Bear case, about $23 per share. The 2023-2025 conditions persist: gross margin stays near 2025's 31.7%, Chinese ceramic-substrate competition keeps pressure on curamik, China (31% of 2025 sales) stays weak, and restructuring costs keep recurring as they have for three straight years ($16.9M, $16.2M, $23.4M). Owner cash averages $25M a year for ten years and then fades to nothing over twenty years. That business is worth about $275M; with no debt and about $143M of net cash, shareholders get about $418M, or $23 per share. The debt-free balance sheet is the floor here. Bull case, about $81 per share. The cost program the company has already carried out holds (selling and administrative costs fell from $202M in 2023 to $177M in 2025, R&D from $36M to $28M, the Evergem, Belgium plant is closing and curamik production is being consolidated in Germany), and volumes return to the 2021-2023 range on capacity that is already built. Owner cash returns to about $80M a year, close to the 2019-2021 average, and the franchise sustains it. That business is worth about $1.31B; add about $143M of net cash for roughly $1.46B, or $81 per share. Margin-of-safety price. With the outcomes spread from $23 to $81, the bear case matters most. The margin-of-safety price is $28, close to the bear value, which is backed largely by cash and by a business that has produced positive owner cash in each of the last ten years; if value builds toward the base case over three to four years, the base case implies more than 20% a year. Above about $30 the margin over the bear case becomes too thin for that target. No business condition is required. What would make this wrong. On the upside: data-center design wins that turn into contracted, recurring sales, or margins returning to the levels of 2019-2021. On the downside: further curamik write-downs, another year of restructuring charges near $20M, or a prolonged EV slowdown in China and Europe. Rogers' asbestos liabilities ($57.4M) are mostly matched by insurance recoveries ($52.8M); the small net amount is paid through operating cash flow and is already reflected. Change from our previous analysis. Our August 2026 estimates were bear $28, base $62 and bull $110. The base and bull are lower mainly because we now remove the one-time working-capital cash released in 2024 and 2025 and the 2023 insurance money, and because we no longer assume ongoing growth that is not yet secured. The bear is lower because it now rests on the weaker 2023-2025 results once those one-time items are removed, and because we hold back operating cash rather than counting all cash as surplus.