By the way, substituting PAIV for MSFT in the previous post, Short-Interest Ratio for PAIV could be 12 days assuming all the numbers posted by serfdom are correct.
Short-Interest Ratio = shares shorted to date/shares outstanding 802,000,000/56,000,000 = 12 days
Serfdom might be right on the numbers. If all these numbers are right, then I see 1.05 in less than a month. Remember that if the shorts don’t cover their positions, then the brokerage firm liquidates the borrower’s portfolio so as to get its money back.
That's where I got my material for short seller's refresher course that is posted below. http://www.investopedia.com/ is a good tool for new investors. If you are not sure what a word means, this tool will break it down for you and even walk you through with examples and threads that are related to that particular topic.