Bears Pile Into Dave, CoreWeave and Aptiv

Short sellers made bold moves last week. Dave Inc. saw the sharpest jump, with SI % of Free Float leaping from 20.4% to 28.8% — a gain of 8.4 percentage points in just seven days. That surge puts the fintech app firmly on the squeeze watchlist.

Auto-parts giant Aptiv also drew fresh attention. SI % FF climbed from 4.2% to 6.3% over the week. Bears appear to be betting on continued pressure from tariffs and slowing EV demand.

AI cloud play CoreWeave held elevated shorts at 18.3% of float, up 2 points from a week ago. The stock has been social media's favorite battleground since its IPO, with bulls and bears clashing daily on X and Reddit.

Nuclear micro-cap NANO Nuclear Energy crept higher too, now at 26% SI % FF — steadily building from 23.7% a week ago.

On the other side, Microsoft short interest remains near-zero at just 1.06% of float. Perennial bear target Wolfspeed stays at the top of the most-shorted table at a remarkable 119.7%, while Chewy holds second at 58.7%. These remain crowded shorts with low cost-to-borrow, suggesting bears are comfortable holding.