Bears Pile In: WOLF, CVNA & LYFT Lead SI Surge

Short sellers turned aggressive this week. Several mid- and large-cap names saw short interest jump sharply over just seven days, per ORTEX data through May 12.

Wolfspeed Bears Double Down

WOLF is the standout mover. Short interest hit 74.4% of free float — up a massive 21 percentage points in a week. The semiconductor firm has been under pressure all year. With availability at zero, there are no shares left to borrow. Short sellers already in are stuck, raising squeeze risk.

Carvana Shorts Surge

CVNA saw its SI jump from 2.1% to 10.4% of free float — a 4x spike in a week. That's a sharp reversal for a stock that had seen bearish pressure ease. Shares are easy to borrow for now, with availability at 312%.

Lyft Under Pressure

LYFT SI climbed to 29.2%, up nearly 5 points week-on-week. Bears are building. Availability remains above 100%, so shorts can still get in.

SoundHound's Bear Trap Risk

SOUN holds 40% SI with a cost to borrow of 34% and zero availability. That's a dangerous setup for shorts. Any positive catalyst could spark a fast squeeze.

ORTEX also flagged UWMC, where cost to borrow surged 116% in one week — a sign of tightening supply for short sellers.