A broken neck in a surfing accident triggered a dramatic career change for Derek Peterson, a former Wall Street banker who now heads listed cannabis company Terra Tech.

Selling pot is no longer a private deal. Terra Tech, a cannabis-focused agriculture company, announced its acquisition of the California-based Blum Oakland dispensary on Tuesday.

Is there serious money to be made trading the flowers and leaves of the cannabis plant? Amercanex isn’t alone in betting there will be, someday.

Wall Street investors are deciding it's time to just say yes to marijuana as legalization of cannabis in more U.S. states has them smelling money-making opportunities.