(Reuters) - Amazon.com Inc <AMZN.O> on Thursday reported its first profit miss in two years and said income would slump in the current quarter, as the online retailer ramps up spending on one-day delivery to spark sales growth.
The company also said its investment in faster shipping was starting to pay off, with revenue rising 20% to $63.4 billion (£50.9 billion) in the second quarter ended in June. That topped analysts' estimates and the 17% rate of growth that Amazon posted in April.
