Bears Circle Cerebras and Birkenstock

Short sellers made bold moves last week. CBRS — Cerebras Systems — saw the biggest surge. Its SI % of FF jumped from 6.3% to 30.3% in just seven days. That's a 24-point spike. Availability of shares to borrow sits at just 0.6% of SI. Bears are piling in hard.

BIRK (Birkenstock) is another standout. SI % FF climbed from 21.8% to 29.9%. The cost to borrow hit 27.1% APR — the highest of any stock on this watchlist. Shorts are paying a steep price to stay in that trade.

Car rental names remain under heavy pressure. HTZ (Hertz) holds SI at 44.6% of FF, up 4.8 points on the week. CAR (Avis Budget) sits at 44.8%, also rising. Availability for Hertz is just 9.3% — near-squeeze territory.

GRND (Grindr) doubled its SI in a week — from 11.8% to 22.3%. Availability is a relatively healthy 137%, meaning shorts can still find stock to borrow.

On social platforms, GME stays a talking point at 12.3% SI % FF. TSLA remains lightly shorted at 2.8%. NVDA is even lower at 1.2% — bears show little interest in the AI chip giant.

Data as of 12 June 2026. Not financial advice.