Summary Box: Amazon 2Q profit falls

THE RESULTS: Amazon.com Inc. said Tuesday that its second-quarter profit fell despite a 51 percent jump in revenue as the leading online retailer spent heavily to expand its business.

THE NUMBERS: Amazon earned 41 cents per share on $9.91 billion in revenue. Last year, it earned 45 cents per share on $6.57 billion in revenue. The results were ahead of analyst expectations for 34 cents per share on $9.37 billion in revenue.

SHARE MOVEMENT: Amazon’s stock rose $13.50, or 6.3 percent, to $227.68 in extended trading.