Here's my understanding of what's happening: GME has approximately 70 million shares outstanding. The vast majority of those shares have been borrowed and sold to someone else. Many of those shares have been borrowed and resold again. That's how you end up with an institutional ownership of 110%, and a short interest of 139%. Now obviously this would balance out if transactions from short sells were excluded from the overall numbers, but it's my understanding that they aren't. So you get a distorted number of long & short holdings.OK, so the balance would be 100% - 100% + 100% = 100%
Though the above suspicion on Reddit is about something more abnormal going on, like creating another x% of shares on paper to be able to short them, plus selling naked calls that don’t support the number of shares issued, and whatever else may be going on. I didn’t get into details but curious if there is more to it, while the long shares may be adding to 300% and after subtracting 100% for short selling you may still get 200%.