Canada has licensed total 13 producers of cannabis. Only one is public (Tweed); the other 12 are private firms. Their bias is clearly in favor of private firms at this time which is reasonable given public policy issues and the minefields of public company regulations, laws, and liabilities. The rare CSA Investor Bulletin warning was issued in this context.
https://www.securities-administrators.ca/abou...px?id=1241

"There are more than 600 applicants waiting in the wings to become licensed producers, but the government recently released an analysis of the industry using an estimate of 50 companies over the next decade , which could be an indication that it plans to cap the number of licences it plans to hand out." (Huffington Post 06/16/2014)
http://www.huffingtonpost.ca/2014/06/16/medic...00383.html