The short interest has been between 470K and 560K for the entire last year. That is in a company that has had between 200M and 320M shares over the past year. Far below 1% of the stock at all times over the past year.
When you adjust for the massive share expansion this year the short interest has actually been decreasing relatively if not nominally over previous years.
This tiny short interest is likely due in large part to traders who short against the box. They hedge their in/out short bets with long shares. They accept the risk of losing some shares because the volatility here is so profitable. This has been an extremely profitable play for a very long time given the five year chart for someone building a core long position.
The remaining number would be the small number of shares sold short by people who are supremely confident in IPIX's failure or who suffer from mild financial insanity.
This is an extremely dangerous stock to short right now and the short interest numbers bear that out.
As an experiment, consider trying to open a small short position and see how it works out. A simple 100 share short will show you the problems with shorting on the OTC with share price under $2.50.
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