Shares of Marvell and Astera Labs increased following reports of Amazon AI chip sales. The movement comes as Amazon reported Q2 2026 financial results showing 20% year-over-year revenue growth.

Amazon's Amazon Web Services (AWS) business showed an increase, growing 36.7% year-over-year in the second quarter. This represents the fastest growth for the unit in 18 quarters.

36.7% year-over-year growth

AWS growth rate in Q2

Amazon's AI and Chips businesses each exceeded run rates of more than $25 billion. Andy Jassy, Amazon's president and CEO, described the growth of AWS as booming.

AWS is booming, growing 36.7% year-over-year in Q2--our fastest growth in 18 quarters
— Andy Jassy, Amazon President and CEO

Impact on Astera Labs

Astera Labs (NASDAQ: ALAB), a provider of connectivity solutions for artificial intelligence (AI) infrastructure, saw its shares close 20% higher on Wednesday. Earlier in the day, shares were up 3.6% after having previously risen 14%.

Astera Labs is expected to report its quarterly earnings next week.