The company's shift in focus should improve its fundamentals, the prognosticator believes.After suffering a 16% price drop over the past month, Shopify (SHOP -1.28%) stock is ice-cold on the market. Does that make the e-commerce facilitator an irresistible buy?One analyst tracking the company certainly thinks so, even though he just took a big pair of scissors to his price target. Here's a look at the current state of Shopify, and whether its recent share price tumble makes it a buy on weakness.A chop from ...