Stifel analyst Mark Astrachan continues to expect Monster's sales to rise by at least high single digit percentage levels through at least 2018, partly driven by international expansion and innovation. The analyst attributes recent weakness in the stock to a lack of new products by the company and perceptions of decelerating energy drink growth. But he thinks the U.S. energy drink category "remains healthy," and he says that Monster is poised to offer new products. He recommends buying the shares on weakness and keeps a $185 price target and Buy rating on the stock.