Overall, Amazon's net income increased to $7.8 billion in the second quarter, or $15.12 per diluted share, compared with $5.2 billion, or $10.30 per diluted share, in second-quarter 2020. Net sales increased 27% to $113.1 billion in the second quarter, compared with $88.9 billion in the second quarter of 2020.
Analysts were expecting earnings of $12.22 on revenue of $115.07 billion.
Amazon's revenue fell below market expectations -- falling at the mid-point of its own guidance for Q2, rather than the higher end -- in part because of the "increase in mobility" among consumers during the quarter, CFO Brian Olsavsky said on a conference call Thursday.
"If you look back the last few quarters, we've not done a great job of nailing the impact of Covid. We've generally over-performed our guidance range," he said.
As the spread of the COVID-19 pandemic slowed in the US over Q2, people were "getting vaccinated and getting out in the world," he continued, "and not only shopping offline but also living life... it takes away from shopping time. It's a good phenomenon -- it's great. We just have to gauge our run rate going forward appropriately."
"Over the past 18 months, our consumer business has been called on to deliver an unprecedented number of items, including PPE, food, and other products that helped communities around the world cope with the difficult circumstances of the pandemic," Jassy said in a statement. "At the same time, AWS has helped so many businesses and governments maintain business continuity, and we've seen AWS growth reaccelerate as more companies bring forward plans to transform their businesses and move to the cloud."
Breaking down sales by segment, AWS brought in $14.81 billion in net sales in Q2. Its 37% growth rate is better than Q1's 32% growth rate and above the 29% growth rate posted in Q2 2020.
AWS growth accelerated across a broad range of customers, Olsavsky said on Thursday's call.
"We see strong growth in enterprises, governments, educational and research institutions, and our startup and digital native customers," he said.
Amazon's North America segment brought in net sales of $67.55 billion, growing at 22% year-over-year. International net sales accounted for $30.72 billion, growing at 36%.
AWS once again accounted for a significant portion of operating income, bringing in $4.19 billion in Q2. By comparison, Q2 North America operating income was $3.15 billion, while the International segment brought in $362 million.
Advertising services are the primary driver of sales in Amazon's "Other" category, not an official business segment. Amazon said the category grew 87% in the second quarter to increase net sales by $7.91 billion.
For the third quarter, Amazon expects net sales between $106 billion and $112 billion. It expects operating income to come in between $2.5 billion and $6 billion.