While technology stocks have led the S&P 500 higher year to date, some of the most widely owned marijuana stocks have stumbled in 2017. Top marijuana stocks including Scotts Miracle-Gro Company (NYSE: SMG), GW Pharmaceuticals (NASDAQ: GWPH), and Canopy Growth Corp. (NASDAQOTH: TWMJF) have all lost ground. Does this mean the rally in marijuana stocks is over?