Two of these states haven't even legalized medical cannabis.
Sure, it's the pun of all puns, but the marijuana industry really is growing like a weed.
According to cannabis research firm ArcView, the North American legal-cannabis market saw sales increase by 34% in 2016 to $6.9 billion, and they're liable to grow by an average of 26% a year through 2021.
That's a nearly $22 billion market up for grabs, and investors certainly want a piece of that pie.
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Sean Williams ~ The Motley Fool ~