The analysis goes deeper into the weeds from there, and when he comes out, Sacconaghi concludes that Apple generates $60 million to $110 million in revenue per quarter for itself, plus another $140 million to $250 million for the developers. Assuming a 50% operating margin, he finds that the App Store is contributing 2-4 cents a share in profits per quarter. He notes that it took an estimated 6-8 quarters for iTunes to reach a similar revenue run rate, despite Apple capturing 100% of those revenues.