10% is a really really low % of shorts-not believable for a company like zn- i dont remember off hand any stock averaging only 10% shorts-sure there are a few but not common
both of the shorting sites i've posted re zion show an average of ca 50% short over the last 2 years -not budging no matter what the news-which makes a short squeeze very likely upon an announcement of a commercial find
and when we get greatly increased volume upon good news that will greatly decrease days to cover
sec did issue new rules against the naked shorting-artificial shares u mention- 3-1 -11-
rules which probably had their genesis either before 1-20-2009 or due to a congressional mandate since congressional investigations showed shorters helped precipitate the great recession
which is why the sec temporarily for ca 6 months prohibited shorting in thousands of financial stocks under a sept 2008 order