Short sellers have been quietly accumulating into ACCO Brands earnings, with short interest climbing nearly 30% over the past month to 8.6% of the free float — a level high enough to matter heading into today's Q1 release.
The SI build is the clearest story in the data. Shorts added aggressively around April 9-10, pushing estimated shares short from roughly 6 million to 7.6 million in a single session — a jump of nearly 28% in one day. That level has held and edged higher since, reaching 7.74 million shares as of April 29. Days to cover run at 5.86, meaning it would take nearly six trading sessions to unwind the entire short book at average volumes. Borrow conditions have actually loosened over the same period: cost to borrow has dropped more than 40% over the past week to 0.49%, well below the spike above 1.7% seen in early April. Availability remains tight in absolute terms, but the easing borrow cost suggests the short build is deliberate positioning rather than a scramble for remaining supply.
Options tell a very different story. The put/call ratio has collapsed to just 0.02 — near the lowest reading of the past year — and sits more than a standard deviation below its 20-day average of 0.43. That's an extreme call-skew reading: options traders are overwhelmingly positioned for upside. The divergence between rising short interest and bullish options positioning creates a genuinely charged setup where both sides are making a clear bet.
The bull and bear cases are not subtle. Bears point to a 26% year-over-year collapse in Q1 2025 adjusted EBITDA and forward guidance at the time calling for sales declines of 8-12% in Q2, with margin compression running through the P&L. The stock has drifted from above $4 in February to $3.21, losing roughly a quarter of its value, and last quarter's print triggered a 7% one-day drop followed by a 17% slide over the following five days. Bulls argue that computer accessories growth, Brazil recovery, and gaming accessory expansion internationally represent a real — if slow — repositioning. Barrington Research, the sole analyst covering the stock publicly, trimmed its target to $5 in March from $6 while maintaining an Outperform rating; the mean target of $7.67 carries a long downward revision history and should be treated with caution given the stock's current level near $3.21.
The Capital Management Corporation added over 1.4 million shares in Q1 2026 — the largest institutional addition among the top holders — while Allspring, BlackRock, Vanguard, and State Street all made modest additions. The institutional buying cluster is notable against the bear-side short build, suggesting active managers see value the shorts disagree with.
Today's print will test whether the company's gradual recovery narrative — accessories growth, international gaming, Brazil — can survive the macro backdrop of weaker consumer spending on office supplies, and whether margins have stabilised enough to halt the long series of downward estimate revisions.
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