Cosan is a deleveraging story now
- Cosan owns stakes in Rumo, Compass, Moove, Radar, and Raízen, but Raízen is now carried at zero on Cosan's balance sheet.
- The bull case is simple: sell pieces, cut parent debt, and let the remaining assets shift value from lenders to shareholders.
- The company raised R$10.5 billion in equity in Q3 2025, a major repair move after debt pressure became acute.
- The bear case has teeth: Raízen filed for an out-of-court reorganization in March 2026.
- Cosan's 2025 net sales were R$40,418.6 million, down 8.0% from 2024, before the full effect of Raízen's court process.
Debt repair drives the stock
Cosan is now mainly a balance sheet story. The parent company has too much debt for a holding company that depends on cash coming up from subsidiaries. Management has said the long-term goal is for structural parent debt to be closer to zero.
The bull case is that management keeps selling or partially monetizing assets without ruining the portfolio. The Vale stake was fully sold in early 2025, and the Q3 2025 equity raise brought in R$10.5 billion. If that cash and more asset sales reduce debt, the same operating assets could be worth more to equity holders.
The bear case has already partly happened. Raízen filed for an out-of-court reorganization in March 2026, and Cosan reduced the value of its Raízen investment to zero because it said it has no legal or constructive duty to fund it. That leaves Rumo, Compass, Moove, and Radar to support the parent company's debt story.
A possible ADS delisting from the NYSE adds another concern. If Cosan leaves the NYSE, U.S. investors may face lower trading liquidity and less familiar disclosure access, even if the common shares still trade in Brazil.
A holding company with real assets
Cosan makes money through controlled businesses and investments. Rumo earns rail, warehousing, and port loading revenue. Compass sells and distributes natural gas. Moove blends and sells lubricants and specialty products. Radar leases and sells farmland.
Raízen is different. It is a joint venture in sugar, ethanol, bioenergy, fuel distribution, and Shell-branded service stations in parts of Latin America. Cosan accounts for it using the equity method, and after the 2026 court filing, Cosan marked its investment in Raízen to zero.
The model works when subsidiaries generate cash, pay dividends, and grow while the parent keeps debt under control. It breaks when parent debt comes due faster than cash comes up, or when a major investee like Raízen destroys equity value instead of sending cash.
What is left to carry value
Rumo
Rumo runs rail logistics, warehousing, and port loading, mainly for grains and sugar. In 2025, higher North operation volumes helped offset lower tariffs.
Compass
Compass distributes and markets natural gas in Brazil. Industrial sales fell in 2025, but residential and commercial lines showed growth in the filing.
Moove
Moove sells lubricants, base oils, and specialty products across several countries. It is recovering from a fire at the Rio de Janeiro plant and is moving toward a more spread-out manufacturing setup.
Radar
Radar manages agricultural land and realizes value through leases and land sales. Its 2025 sales fell sharply because it sold fewer properties than in 2024.
Raízen
Raízen operates in sugar, ethanol, bioenergy, fuels, and service stations. For Cosan shareholders, it is now a distressed option because Cosan has written the investment down to zero.
2025 sales mix
Shares use fiscal 2025 net sales by consolidated segment before intersegment eliminations. Raízen is not in this mix because Cosan accounts for it as an equity-method joint venture, and the investment was marked to zero.
What could still break
Parent debt stays too high
High impact · High oddsCosan's main risk is at the holding company level. The parent needs cash from asset sales, dividends, equity, or refinancing to handle debt service. In Q3 2025, the debt service coverage ratio fell to 1.0x, meaning coverage was thin.
Raízen stress spreads
High impact · Medium oddsCosan says it has no legal or constructive duty to support Raízen. Still, Raízen is a large, visible asset tied to Cosan's history and market confidence. A worse court process could hurt sentiment or make lenders more cautious toward the group.
Asset sales come at bad prices
High impact · Medium oddsThe deleveraging plan needs capital. Management has discussed partial monetizations rather than full sales of portfolio companies. If markets demand low prices, Cosan may have to choose between selling quality assets cheaply or keeping more debt.
High Brazilian rates keep biting
Medium impact · High oddsBrazilian rates were high in 2025, with the average SELIC rate shown at 14.90% in the filing. High rates raise debt costs and can reduce the value investors place on long-duration infrastructure cash flows.
ADS delisting hurts liquidity
Medium impact · Medium oddsCosan said it is considering actions that would delist its ADSs from the NYSE. If that happens, U.S. trading could move away from a familiar venue, and some investors may sell because they cannot or do not want to hold the local Brazilian shares.
Operations need heavy execution
Medium impact · Medium oddsRumo, Compass, and Moove all need steady execution in physical businesses. Rail concessions, gas distribution, plant recovery, weather, fires, and commodity cycles can all affect cash generation. Moove's plant fire and Raízen's weather and fire issues show these risks are not theoretical.
In one breath
What does Cosan actually own?
Cosan owns a portfolio centered on Rumo, Compass, Moove, Radar, and Raízen. Rumo is rail logistics, Compass is natural gas, Moove is lubricants, Radar is farmland, and Raízen is sugar, ethanol, energy, and fuel distribution.
Why did Cosan write Raízen down to zero?
Raízen filed for an out-of-court reorganization in March 2026. Cosan said it had no legal or constructive duty to fund Raízen, so it reduced the investment value to zero on its balance sheet.
What is the main reason to own Cosan stock?
The main reason is a successful deleveraging. If Cosan cuts parent debt while keeping enough value in Rumo, Compass, Moove, and Radar, more of the portfolio value could flow to shareholders.
What is the biggest reason to avoid Cosan stock?
The biggest reason is balance sheet risk. If asset sales, dividends, and refinancing do not cover parent debt needs, equity holders could face more dilution or more value leakage to creditors.