It's high times for soaring marijuana stocks on Wall Street

NEW YORK — Reefer Madness has gripped Wall Street.Investors are craving marijuana stocks as Canada prepares to legalize pot next month, leading to giant gains for Canada-based companies listed on U.S. exchanges. Some experts are concerned that the ending will be a buzzkill.Billions of dollars have poured into the stocks in the last few months, and investors smell green (money, not leaves) in the air as they consider the opportunities these companies might have as the marijuana market in Ca