Say you shorted at .0002 with intentions to cover at .0001 for a potential 50% profit. You would have to place $2.50 per share collateral. Every 1m shares you will have to place 2.5 million dollars in MANDATORY collateral for a potential $100 profit. Thats IF you can cover at .0001 WHO IN THE RIGHT MIND WOULD EVER DO THAT? Answer is no one.
FINRA is ONLY reliable short interest source read it directly from OTC here my friend