Drone USA looks like it can have a short for a maximum 2 week holding from now given recent announcements of their Howco Distribution Warehouse and drone sales ( Yahoo
Finance). The drone market is expected to take a more positive boom the next years, especially in 2018. Overall the correlations for Drone USA since going public have been negative for a while. They had a huge downturn in the late 1970s and seemed to never recover. The correlations and prices have been exceedingly flat with not much demand. Overall for a short burst, you can expect a 0.5% profit but given the risk, I would barely invest that much money into it (if at all).