Bears Ramp Up — AI and Chips in Crosshairs

Short sellers are piling into select names this week. The moves are sharp and deliberate.

Wolfspeed tops the most-shorted list. Its SI % FF hit 103% — up 8 percentage points in just seven days. Bears are essentially betting the company has more shares short than its entire free float. ORTEX noted Wolfspeed prominently in its "Chips, Bears, and Earnings Collide" alert on Sunday.

AI chip newcomer Cerebras Systems saw its short interest jump nearly 7 points to 32.4% in a week. The stock is fresh from its IPO and already attracting heavy scepticism.

Avis Budget Group sits at 48% SI % FF — among the highest of any large-cap. Shorts added another 2.3 points this week. Bears see the rental car firm as structurally challenged.

AST SpaceMobile edged up to 21.8%. Social chatter around the satellite broadband play remains loud, keeping it on both bulls' and bears' radars.

Meanwhile, CleanSpark gave shorts a scare — its SI % FF dropped 2.5 points to 31.9%. A short squeeze risk remains real at those levels.

Fox Corporation is also attracting fresh attention. Its SI % FF climbed to 16%, up 2 points on the week, amid uncertainty over media deal activity.

Data as of 18 June 2026. This is not financial advice.