Canopy Growth Corp. ( TSX:WEED )(NYSE:CGC) With The Cannabis Act finally getting approval by the Senate, Canada is on the verge of becoming the first G7 nation to officially legalize marijuana for both medical and recreational use. It's an exciting time for Canadians, but pot stocks remain a highly speculative investment that could blow up in an investors face should any unforeseen events trigger an industry-wide meltdown in the post-legalization era. One could easily quadruple-up over the next year, but on the flipside, investors must also understand that the possibility of a deep correction is an equally likely scenario. As such, any pot stock should only be invested with disposable income from a retirement portfolio. For those comfortable with the associated risks, Canopy remains my preferred choice in the marijuana space. Management has been smart with its acquisitions and has not severely diluted its shareholders in order to scoop up smaller competitors at what can only be described as absurd multiples.