Short Sellers Eye AI and Car Rental Names

The biggest short interest jump this week belongs to CBRS. Cerebras Systems saw its SI % FF leap from 6.3% to 25.6% in just seven days. That's a near-quadrupling of bearish positioning in the AI chip hopeful.

GRND (Grindr) also drew fresh shorts. SI climbed from 12% to 22.2%. Availability stands at a comfortable 137%, so bears still have room to pile in.

BIRK (Birkenstock) is a standout for squeeze risk. Short interest hit 30.2% of free float. The cost to borrow has spiked to 16.7% APR. Availability is razor-thin at just 3.4% — shorts are paying up and lenders are scarce.

Car rental names remain under fire. CAR (Avis Budget) sits at 45.8% SI % FF, up 6.2 points on the week. HTZ (Hertz) climbed to 44.5%. Put flow into both names surged alongside earnings week pressure.

On the other side, WOLF (Wolfspeed) shorts covered hard. SI fell from 112% to 95.7% — a 16.8-point drop in one week. Still extreme, but the trend shifted.

GME dipped slightly to 12.8% SI % FF. Social chatter continues but bears have not added meaningfully.