Amazon Rises 12%, Apple Falls 7% After Earnings
Amazon shares rose about 12% in premarket trading Friday on strong cloud and AI results, while Apple fell roughly 7% after warning of significant supply constraints.

The Morning Brief Desk · July 31, 2026 · Based on reporting by CNBC Top News
Big Tech's latest earnings reports split the market Friday. Amazon shares climbed about 12% in premarket trading after the company posted strong cloud and AI results, while Apple dropped roughly 7% following warnings about component shortages and continued questions about its AI strategy, CNBC reported.
Apple told investors to expect worsening supply problems even as it described its latest report as its strongest June quarter ever, with iPhone sales up 22% and Mac sales up 29% year over year, according to TechCrunch. "We're seeing some very significant constraints currently with limited flexibility in the supply chain to remedy it," CEO Tim Cook said on the company's earnings call. Apple reported about $11.1 billion in inventory, nearly double the $5.7 billion it held last September, as it stockpiles components ahead of expected shortages.
Amazon, separately, disclosed that it received $600 million in tariff refunds after the Supreme Court ruled many of President Trump's levies illegal, CNBC reported. The company said it will pass those refunds along to some customers; it previously had not said whether it would recoup the tariff costs. The divergent stock moves came as investors sorted Big Tech companies into AI winners and laggards heading into July's final trading session.
The context
Apple's supply problems stem from the generative AI boom, which has driven steep demand for hardware components and pushed up memory prices. Cook, who is outgoing as CEO, described the situation as "a hundred-year flood" on memory pricing, according to TechCrunch. The company's biggest challenge is securing the advanced memory nodes used in its A-Series and M-Series processors, which power iPhones and Macs. The constraints led Apple to raise prices on Macs and iPads last month, a step Cook said the company took reluctantly. Meta, Samsung, Microsoft and Sony have also raised hardware prices. Apple's decision to build up inventory marks a break from Cook's long-standing supply chain approach, which emphasized keeping stock on hand to a minimum. Amazon's tariff refund followed the Supreme Court ruling against many of the Trump administration's levies; the company had not previously disclosed whether it would recover those costs.
Why it matters
The split between Amazon and Apple shows how investors are now grading Big Tech: companies that deliver measurable AI results are rewarded, while those leaving doubts are punished. That framework affects millions of U.S. investors and retirement accounts holding these stocks. For Apple, the numbers point to slower growth ahead. The company is forecasting revenue growth of 9% to 11% year over year for the coming quarter, down from the roughly 16% pace it has maintained in recent quarters, according to TechCrunch. For Amazon customers, the tariff refunds mean some will receive money back directly.
What’s next
Apple expects the impact of supply constraints to increase significantly in the coming quarter, Cook said, with the company forecasting 9% to 11% revenue growth. John Ternus, Apple's senior vice president of hardware engineering, is set to take over as CEO in September, according to TechCrunch. Which Amazon customers receive tariff refunds, and how, remains to be detailed. The Friday session will show whether the premarket moves hold through the close of July trading.
Sources
CNBC Top News — Apple drops 7%, Amazon surges 12% as investors pick AI winners after earnings
Shares of Amazon jumped sharply in premarket trading on Friday while Apple dropped as investors digest earnings.
TechCrunch — Apple stockpiles inventory as it braces for 'significant supply constraints'
Apple is worried enough about supply shortages that it reported about $11.1 billion in inventory, almost double last September's figure.
CNBC Top News — Amazon got $600 million in Trump tariff refunds and will pass return along to some customers
Amazon previously hadn't disclosed whether it would recoup tariff costs after the Supreme Court ruled many of Trump's levies were illegal.
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