Bears Circle Wolfspeed, WaterBridge in Fresh Shorts Push

Wolfspeed is the most shorted mid-cap in the US right now. Short interest hit 117% of free float — and availability has fallen to zero. Borrowing costs stand at 9.2% APR. Bears have added a further 16.5 percentage points in the past week alone.

WaterBridge Infrastructure is another notable mover. SI jumped 40 points in seven days to 72.8% of free float. That is a sharp escalation for the $1.3bn water infrastructure firm.

Cerebras Systems, the AI chip IPO that caught attention earlier this year, now sits at 38% SI. Shorts added 6 points this week. Availability is also zero — meaning new borrow is essentially gone.

Credit Acceptance Corporation saw SI climb over 5 points to nearly 20% of free float. Restaurant Brands International — owner of Burger King and Tim Hortons — jumped 4.6 points to 11.6%.

On the retail-favourite side, GameStop SI edged down to 13.6%. Strategy Inc slipped slightly to 12.1%. Tesla shorts trimmed positions too, with SI dipping to 2.9% of free float.

Data as of 24 June 2026. Not financial advice.