However, marijuana stocks can still be dangerous At the same time, there are also a laundry list of reasons to stay far, far away from pot stocks. For example, marijuana is still an illicit substance throughout much of North America. The U.S. federal government views it as having no medical benefits, and it’s therefore wholly illegal. This United States’ Schedule I categorization of marijuana comes with a number of inherent disadvantages for U.S. businesses and pot stocks. To begin with, researching cannabis for medical purposes is exceptionally difficult because of its Schedule I status. Also, pot-based businesses are unable to take normal corporate income-tax deductions since they’re selling a federally illegal substance. Finally, banks want little to do with marijuana companies, leaving many cannabis companies to deal solely with cash, which is Green Rush a major security concern and a growth inhibitor.