Short sellers turned aggressive this week across several notable names. Data as of September 25 shows sharp moves in both directions.
SPCX, the SpaceX tracking vehicle, saw short interest jump nearly 10 percentage points in seven days. SI now sits at 30.1% of free float. Bears are pressing despite a $1.2 trillion market cap. Availability remains adequate at 170%, so supply for shorts isn't the issue.
MMED — MiniMed Group — is flashing squeeze signals. SI spiked from 41% to 68.5% of free float in one week. Availability is near zero at just 2.1%. New short positions are nearly impossible to open. Any positive catalyst could trigger a rapid unwind.
WOLF, Wolfspeed, remains one of the most-shorted large names. SI holds at 81.3% of float with zero availability. The semiconductor firm is down 40% over three months.
On the covering side, CHWY saw bears retreat. SI fell from 72.8% to 65.7% this week. That's still high, but the direction is shifting. Availability at 452% confirms shorts can cover easily.
Chip stocks also saw headlines after CNBC noted S&P 500 weakness tied to AI-linked names. NVDA short interest stays low at just 1.3% of float — bears aren't targeting it.
Not financial advice. ORTEX data, September 2026.
ORTEX Market Intelligence content is generated by AI from a snapshot of ORTEX's proprietary data. Content is informational only and does not constitute investment advice.
