https://techcrunch.com/2018/07/26/amazons-aws-continues-to-lead-its-performance-highlights/

Amazon’s web services AWS continue to be the highlight of the company’s balance sheet, once again showing the kind of growth Amazon is looking for in a new business for the second quarter — especially one that has dramatically better margins than its core retail business.

Despite now running a grocery chain, the company’s AWS division — which has an operating margin over 25 percent compared to its tiny margins on retail — grew 49 percent year-over-year in the quarter compared to last year’s second quarter. It’s also up 49 percent year-over-year when comparing the most recent six months to the same period last year. AWS is now on a run rate well north of $10 billion annually, generating more than $6 billion in revenue in the second quarter this year. Meanwhile, Amazon’s retail operations generated nearly $47 billion with a net income of just over $1.3 billion (unaudited). Amazon’s AWS generated $1.6 billion in operating income on its $6.1 billion in revenue.