Bears Circle GameStop Again as SI Spikes 700%

GME just flashed one of the most dramatic short interest moves of the week. Short interest as a percentage of free float rocketed to 7.15% on September 21. That's up from just 0.90% a week earlier — a jump of over 700% in seven days. The last time GME saw a short build this aggressive, Reddit threads ignited within hours.

Meanwhile, semiconductor bear target WOLF remains deeply in bears' sights. Wolfspeed's SI % of FF sits at 81.2% with zero shares available to borrow. The stock has shed 48% over three months. Short sellers are not loosening their grip.

Space is also drawing short attention. SPCX — Space Exploration Technologies — saw SI % of FF climb to 29.4%, up from 23.2% last week. News today noted SpaceX is making the IPO market "look small," yet shorts keep piling in.

On the most-shorted list, FLWS 1-800-Flowers carries a punishing 31.4 days to cover. HTZ Hertz holds 67.7% SI % of FF after crashing 64% in three months.

Pharma name BRVE Braveheart Bio tops the SI charts at 277% of free float — the highest reading across mid-cap US stocks — up 86 percentage points in a single week.

Short sellers are active and the GME move is the one to watch. Cost to borrow remains low at 0.55%, meaning the short trade is still cheap to put on. Squeeze risk is rising.