Amazon shares will climb another 25% to $2,525the highest target on Wall Streetaccording to Stifel.Amazon will grab more market share in retail spending as consumers shift online and the e-commerce giant expands further into brick-and-mortar, analyst Scott Devitt said.Amazon's cloud business will grow more than two times faster than the overall market, according toDevitt.WatchAmazon share in real time here.Amazon's dominance in two main areas, e-commerce and the cloud, will gives its stock another 25% boost, Stifel says."Amazon is the leader in two large and rapidly growing markets (eCommerce and Cloud)," analystScott Devitt said in a note sent out to clients on Thursday. He added that Amazon's momentum in the two businesses will drive itsstock price to a Street-high target of$2,525.Devitt's previous targe was at $2,020.The e-commerce giant posted a $63.5 billion product sales in the first half of this year, up 31% from the same period last year. And the product sales could grow even faster in the following quarters as the Thanksgiving and Christmas holidays near, Devitt noted.Devitt added that store closures in the US are continuing at a rapid pace, but consumer sentiment and employment rates are near an 18-year peak, which should benefit its e-commerce business. Meanwhile, Amazon isinvesting in a number of initiatives, including Prime andfurther capturing offline retail opportunities, such as acquiring Whole Foods and updating its Amazon Go features. All show that Amazon will grab more market share in the retail space, according to Devitt."We support where Amazon's investment dollars are focused as we believe this better positions the company for continued market share gains and opportunity for greater margin expansion once the company emerges from the current investment cycle," Devitt said.Amazon posted $11.6 billion of revenue fromcloud business for the six month ended in June, up 49% from last year. ByDevitt's calculation, global public cloud spending is expected to grow18% in the next three years, andAmazon's cloud business will grow42% in the same periodmore than two times faster than the overall market."We expect continued market share gains from Amazons cloud business driven by increased adoption among larger enterprises and the public sector, wallet share gains from existing customers, and ongoing product innovation," Devitt said.On Thursday, Amazon opened anew concept store called Amazon 4-Star, in Manhattan's SoHo neighborhood. The store only sells items that customers have rated four stars and above, as well as products that the website's data shows are trending and on customers' wish lists.Amazon shares gained almost 2% on Thursday. They're up 70% this year.Now read:Short seller Andrew Left is creating a cannabis fund. He explains why the market's not in a bubble, but does need to 'chill out'The boss of Santander's digital bank says it will be 'the same direction but faster' under new CEO Andrea OrcelSurveyMonkey popped up 50% in its IPOnow its CFO explains the path ahead as it works toward profitability and faster growthJoin the conversation about this storyNOW WATCH: Apple might introduce three new iPhones this year ' here's what we know Click here to read full news..