Cosan's Sum-of-Parts Discount Narrows as Deleveraging Bites

Cosan S.A. (CSAN) shares have been pricing in a distress scenario that the balance sheet no longer supports, according to a bullish thesis published on Nick Hu's Substack. The Brazilian infrastructure holding company, which controls stakes in Rumo, Compass, Moove, Radar, and Raízen, trades at a steep discount to net asset value even after assigning zero value to its Raízen position, the thesis argues.

CSAN's equity has collapsed to a point where high-quality monopolistic assets are being valued as if they were distressed, despite durable cash generation from the underlying businesses. The stock traded at $2.66 as of June 8, with a trailing P/E of 5.97 and a forward P/E of 6.16, according to Yahoo Finance.

The core of the argument rests on a structural valuation gap created by Brazil's elevated Selic rate, which compresses long-duration cash flows for capital-intensive infrastructure assets. An emerging easing cycle could set up a powerful rerating, the thesis says.

Recent deleveraging has materially reduced holding company leverage and eliminated near-term liquidity risk. A BTG Pactual and Perfin-backed capital raise, combined with monetization of the Vale stake, has reset the balance sheet. The company has also been buying back shares, and there is IPO optionality from Compass, which would enhance per-share value creation.

Macro conditions reinforce the asymmetry. A weaker Brazilian real supports export-driven volumes at Rumo, while elevated oil prices improve ethanol economics for Raízen, offsetting cost pressures at Moove and cyclical rail inputs. As the Selic declines from peak levels, debt service costs fall sharply while operating subsidiaries continue generating resilient free cash flow, enabling sustained deleveraging and compounding intrinsic value.

Structural assets like rail, gas distribution, and agricultural land provide stable, inflation-linked earnings power that supports long-term rerating toward infrastructure multiples, the thesis argues. On a conservative sum-of-the-parts basis, Cosan trades at a steep discount to NAV even after assigning zero value to Raízen, implying substantial embedded upside as discount rates normalize.

Cosan S.A. is not on our list of the 40 Most Popular Stocks Among Hedge Funds. As per our database, 11 hedge fund portfolios held CSAN at the end of the first quarter, up from 9 in the previous quarter.

Previously, we covered a bullish thesis on Delek US Holdings (DK) by Matt Lindsay in May 2025, which highlighted operational optimization, midstream deconsolidation, and shareholder returns. DK's stock price has appreciated by approximately 146.59% since our coverage. NickFox shares a similar view but emphasizes CSAN's macro-driven sum-of-the-parts rerating, deleveraging, and Brazil interest rate cycle normalization as key value drivers.

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