Bears Pile Into Cerebras and Car Rental Stocks

Short sellers made aggressive moves last week. CBRS (Cerebras Systems) saw the biggest jump — short interest leapt to 32.4% of free float from just 6.3% a week earlier. That's a 26-point surge in seven days. Availability is zero, meaning borrowed shares are essentially tapped out.

Rental car stocks drew fresh bears too. CAR (Avis Budget) now sits at 47.8% SI, up 7 points in a week. HTZ (Hertz) climbed to 44.5%, adding 4.4 points. Both names face pressure from rising EV adoption and cost headwinds.

GRND (Grindr) attracted new short interest, rising to 22.3% from 12% — a 10-point weekly move. Availability stands at 128%, so shares remain easy to borrow.

On the covering side, WOLF (Wolfspeed) saw the sharpest squeeze. Short interest dropped nearly 28 points to 88.9%. Shorts are still very heavy, but the cover wave is notable. The stock's CTB sits near 7.9% APR.

IONQ and OKLO also saw shorts retreat, each down roughly 4 points. Quantum computing and nuclear energy names remain volatile but are clearly attracting short-covering interest.

Data as of 15 June 2026. Not financial advice.