
Context: How B3 (Brasil, Bolsa, Balcao) works, and what it makes issuers disclose · Brazil on the LatAm Power Map
Founded on a small riverside loom in Blumenau in 1882, Karsten spent a decade drowning in debt — then a group of investor-entrepreneurs arrived in 2014, restructured the business, and turned a R$300 million (US$58 mn) hole in its balance sheet into its first positive equity position by 2024. The recovery is now real, the brand is Brazil’s oldest surviving home-textiles name, and the stock has barely been discovered.
| Full name | Karsten S.A. |
| Tickers / exchange | CTKA3 (ordinary), CTKA4 (preferred) — B3, São Paulo |
| Headquarters | Blumenau, Santa Catarina, Brazil |
| Sector | Consumer Cyclical — Textile Manufacturing |
| Employees | ~2,500 |
| Market value (market cap) | R$1.41bn (~US$273m) |
| Yearly sales (revenue, FY2025) | R$758m (~US$147m) |
| Net profit (FY2025) | R$70.5m (~US$13.7m) |
| Net margin (FY2025) | 9.3% (our calculation) |
| Return on equity (FY2025) | ~93% (our calculation — inflated by thin equity base) |
| Price-to-earnings ratio | 4.4× (TTM) |
| Dividend yield | None paid; last dividend 2011 |
| Website | karsten.com.br / karstensa.com.br (IR) |
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What it is
Karsten’s story begins in 1882 with the founding of Tecelagem Roeder, Karsten & Hadlich — a small weaving shed equipped with looms imported from Germany. Today it is Brazil’s best-known manufacturer of bed linen, bath towels, table cloth and home-décor fabric, selling under the Karsten and Trussardi labels.
The company runs a fully vertically integrated production process — from spinning raw cotton into yarn, through weaving, dyeing and finishing, all the way to the final sewn product. Beyond its Blumenau factory it operates a second plant in Ibirama (SC), a distribution centre in Gaspar (SC) and ten own-brand retail stores in southern Brazil.
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Who owns it
Some 86% of Karsten’s capital sits inside the holding company Kasavii Participações, which pools the founding Karsten family alongside four investors who came in during the 2014 rescue. The EODHD data puts combined insider ownership at 97.66%, leaving a public free float of roughly 2%.
Those four investors were Armando Hess de Souza, Rui Hess de Souza, Alvi Rauh, and Márcio Bertoldi, who joined the Karsten and Odebrecht families to take control of the company. The controlling Odebrecht referred to here is the Santa Catarina textile branch — unrelated to the construction conglomerate.
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Who runs it
Márcio Luiz Bertoldi is CEO (Diretor Presidente), a role he has held since January 2024; before that he served as Karsten’s CFO from 2014 to 2022 and then as retail director until end-2023, with a mandate now running to April 2028.
The CFO and investor-relations officer is a professional who has served in that role since June 2022, having previously been CFO at Docol Metais Sanitários and CFO at Multilog S.A. Gil Conrado Karsten — a family scion with an MBA from the University of Chicago’s Booth School — chairs the Board of Directors.
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The money, in plain words
Revenue has grown every year: R$668m (US$130 mn) in 2023, R$699m (US$136 mn) in 2024, R$758m (US$147 mn) in 2025 — a rise of 8.5% in the latest year (our calculation). Karsten keeps about 9.3 cents of profit from every real of sales — a net profit margin of 9.3% — which is respectable for a capital-intensive textile manufacturer.
The return-on-equity figure of roughly 93% (our calculation: R$70.5m (US$14 mn) net income ÷ R$76m (US$15 mn) equity) sounds spectacular but is almost entirely a mathematical artefact: the company spent years carrying a monstrous negative equity of R$300m (US$58 mn), which was turned positive for the first time only in 2024. Equity is still paper-thin; as it rebuilds, the ROE ratio will normalise sharply downward.
The balance sheet carries R$418.7m (US$81 mn) of gross debt against just R$14.3m (US$3 mn) cash — net debt of R$404.4m (~US$78.5m, our calculation) — a heavy load relative to the R$76m (US$15 mn) equity base, though operating profit of R$91m (US$18 mn) covers interest costs roughly three times over. At a price-to-earnings ratio of 4.4×, the market is pricing in significant ongoing risk from that leverage, not rewarding the earnings recovery.
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What it is doing now
Karsten marked 2024 as the year it “came fully back into the black” after the decade-long restructuring — posting net profit of R$118.4m (US$23 mn) and, for the first time, a positive shareholders’ equity of R$5m (US$971 k). FY2025 profit fell back to R$70.5m (US$14 mn) as the one-off gains that inflated 2024 faded, but revenue kept climbing.
The company has been expanding its own retail network, with physical stores in Blumenau, Balneário Camboriú, Porto Belo, Florianópolis, Londrina, Curitiba, São Paulo and Campo Largo. The push toward selling directly to consumers — rather than relying on wholesale — is the main strategic lever management is pulling to protect margins.
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What to watch
- Debt reduction pace. Net debt of ~R$404m (US$78 mn) dwarfs equity; every percentage point of margin improvement matters enormously to the balance-sheet repair story.
- Dividend resumption. The last dividend paid was R$0.17 (US$0.03)per share in May 2011. Any resumption — even modest — would signal management’s confidence that the restructuring is complete.
- Retail store rollout. Own stores carry higher margins than wholesale; the pace of new openings is the clearest leading indicator of revenue quality.
- Free-float liquidity. With barely 2% of shares freely tradeable, the stock is illiquid; any meaningful institutional interest would move the price sharply and could be both opportunity and risk.
- Cotton and FX. Raw cotton and chemicals are priced in global markets; a weak real raises input costs quickly and can erase margin gains that took years to build.
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Sources
- Karsten S.A. — Formulário de Referência 2024 (filed with CVM): karstensa.com.br — FRE 2024
- Dados de Mercado — CTKA3 board and executive data (sourced from CVM filings): dadosdemercado.com.br/acoes/ctka3
- NSC Total — Karsten turnaround interview with CEO Márcio Bertoldi (May 2025): nsctotal.com.br
- AUVP Analítica — CTKA3 historical financials: analitica.auvp.com.br/acoes/CTKA3
- Market data: EODHD.
This is news, not investment advice.
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