Suzano S.A. heads into its April 30 earnings report with the borrow market fully exhausted and short interest at a 30-day high — a tension that hangs over the print.
The lending story is the sharpest signal. Every share available to borrow has already been lent out, with the borrow pool at 100% utilisation every single day for the past two weeks. That is the tightest the lending market has been all year. Cost to borrow ticked up to 1.13% — modest in absolute terms, but 16% higher than a month ago. Short sellers have been adding aggressively: estimated short interest jumped 127% over the past month, and rose a further 5% in the past week alone to roughly 12.6 million shares. ORTEX ranks the short score at 61.9 — in the 96th percentile of the broader universe — and days to cover sits at around 3, leaving shorts with limited room to manoeuvre if the print surprises.
Options tell a different story. Call activity has overtaken put buying, with the put/call ratio at 0.55 — 1.2 standard deviations below its 20-day average of 0.74. That is one of the more call-heavy readings of recent weeks, after a period in late March when the PCR briefly topped 1.40. The divergence is notable: short interest is climbing, yet options traders are positioned more for upside than downside. The two signals are pulling in opposite directions, which compresses the narrative into a cleaner binary for the earnings print itself.
The macro backdrop has done Suzano no favours. The stock is down 7% over the past month and closed at $8.93 on April 29, dropping another 1.5% in the final session before results. The Feffer family controls nearly 46% of the company through Suzano Holding and direct personal stakes, leaving the free float comparatively thin — which may explain why the lending pool exhausted so quickly as short interest built. BlackRock added roughly 6.9 million shares as of end-March, and Norges Bank added nearly 5 million shares through year-end 2025, suggesting institutional buyers have been accumulating even as short sellers pressed harder. Analyst data on record is too stale to cite. The most recent dividend proposal, announced in late March, offered an additional payout payable at year-end 2026, which likely explains the dividend score ranking in the 97th percentile of the universe.
The print tests whether Suzano's pulp volumes and BRL-denominated cost structure can hold up against a strengthening real and softer global demand — with a fully tapped lending pool and divergent options sentiment meaning there is little margin for error in either direction.
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