Bears Pile In: AI Stock and Car Rental Giants Hit

Short sellers made sharp moves this week. The standout mover is CBRS — Cerebras Systems — where short interest as a percentage of free float rocketed from 6.25% to 25.61% in just seven days. That's a 19-point jump. Skeptics are clearly questioning its AI chip valuations.

The car rental sector is under heavy fire. CAR Avis Budget Group hit 45.84% SI % FF. HTZ Hertz sits at 44.52%. Both climbed over 6 points and 4.6 points respectively in a week. High debt loads and used-car prices have bears circling.

GRND Grindr saw shorts nearly double from 12% to 22% in seven days. Fashion stock BIRK Birkenstock jumped from 21.85% to 30.22%.

On the squeeze side, WOLF Wolfspeed saw shorts retreat sharply — down nearly 17 points to 95.7%. That remains an extreme level, but the direction matters.

Among social media favourites, GME GameStop holds 12.84% SI % FF. MSTR Strategy Inc sits at 12.09%. TSLA Tesla and NVDA NVIDIA remain lightly shorted at 2.75% and 1.24% respectively — bears show little appetite for mega-cap tech.