Uhhh AMC and GME were shorted and one can easily go and see their short interest numbers as reported by FINRA. In both of those cases there was short interest and FTD's, but in GNCPs case there are zero of both.
There is no such thing as "air shares", without delivery of shares there is a failure to deliver, this causes a deficit of credits and shows up in the FTD report.
No different than your bank account, you pay for an item, you dont receive it, you are now out the item due to a Failure to Deliver. Not difficult to understand the concept, you paid for shares and no shares were delivered, results in an FTD.
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