In just over two more months, marijuana investors should begin to “see the green.” After years of promises and months of debate, the Cannabis Act, which legalizes recreational marijuana, was passed by Canada’s Parliament on June 19. By Oct. 17, 2018, adult-use weed will officially go on sale.While estimates vary wildly, as is to be expected with no industrialized country in the world having given the green light to recreational pot before, the industry could generate an additional $5 billion in sales once it’s fully ramped up. With domestic demand expected to be strong, and export opportunities abounding, investors believe pot stocks could be the next-greatest thing since sliced bread.

But as with all investable industries, there will be winners and losers. It’s my opinion that the following three marijuana stocks can be safely left out of your investment portfolio for the time being until they prove their value to Wall Street and investors…