GW Pharma is a UK-based company. I am in the middle of a more thorough analysis of this biotech but have called it out as being the only listed stock in the cannabis sector. I included it as a member of my "Focus 4" in a Seeking Alpha article on the sector, suggesting that their management team is quite strong. I will likely have a lot more to say soon regarding my views on the company.
For years, investors who didn't want to buy the stock on the London Stock Exchange had the option to buy it as a pink-sheet, using the symbol (OTCPK:GWPRF). More recently, the company issued a NASDAQ-listed ADS, (NASDAQ:GWPH). In our "Toking Tuesday" chat on 9/24, one of our members asked about the differences between the two securities.
Disclosure: I have no positions in any stocks mentioned, and no plans to initiate any positions within the next 72 hours.