There is virtually no "short interest" on HHSE as you can see from the link below from the OTC. Short interest is the actual number of shares currently short and is reported twice per month. Short sales, on the other hand, mainly consist of short trades made by the market makers during the daily course of business. I don't think brokerages can do short sales on pink sheet stocks anyway. Anyone would be crazy to short HHSE right now even if it was possible--too much risk of it taking off... IMHO