Amazon, Meta and Microsoft stocks surge after strong AI-linked earnings

Amazon, Meta and Microsoft shares jumped this week after investors cheered quarterly results that signalled hyperscaler AI spending is still translating into cloud growth and revenue momentum.

The market response—sharp rallies in three of the largest U.S. tech names—came as Microsoft reported robust Azure growth, Amazon posted accelerating AWS revenue, and Meta’s top-line beat tempered earlier fears about its large AI buildout. Analysts and traders said the earnings season provided the first concrete check on whether heavy AI capex is producing commercial returns.https://finance.yahoo.com/technology/article/amazon-meta-and-microsoft-stocks-surge-as-ai-hyperscalers-post-strong-earnings-results-163729332.html

Microsoft: Azure ~43% growth and profit durability

Microsoft reported FY2026 Q4 revenue of $90.01 billion, with Azure growth running roughly 43% year over year—a pace investors interpreted as evidence that enterprise AI demand is driving cloud consumption.https://www.bloomberg.com/news/videos/2026-07-30/the-pulse-7-30-2026-video The company also posted a 31% jump in net income to $35.8 billion, a figure Axios and other outlets flagged as proof Microsoft can sustain profits even while spending on AI and data centres.https://www.axios.com/2026/07/29/meta-microsoft-earnings-reports-ai

Investors rewarded that combination: accelerating cloud revenue plus resilient margins. That contrasted with earlier quarters when markets worried higher capex would dent profitability. Still, critics point out this is a partial victory; Reuters warned on July 22 that the broader AI investment boom is “putting Big Tech's free cash flow under pressure,” a backdrop that could limit multiple expansion even amid healthy growth.https://www.reuters.com/business/ai-investment-boom-puts-big-techs-free-cash-flow-under-pressure-2026-07-22/

Amazon: AWS at $42.2B and a $220B capex forecast

Amazon reported quarterly revenue near $200.6 billion, with AWS bringing in about $42.2 billion and growth around 37% year over year—numbers traders said validated the idea that enterprise AI workloads are feeding cloud demand.https://www.reuters.com/legal/transactional/amazon-enters-3-trillion-club-ai-optimism-sweeps-through-wall-street-2026-08-03/

Crucially, Amazon raised its full-year capex outlook to $220 billion from $200 billion, a sign that investment in chips, servers and data centres remains a priority. The market treated the move as acceptable because AWS growth and contracted cloud demand appeared to back the spending. Still, higher capex carries the risk of compressing free cash flow if monetization lags—an argument Reuters and CNBC emphasised during this reporting season.https://www.cnbc.com/2026/07/28/hyperscalers-face-higher-capex-scrutiny-after-alphabet-report-panned.html

Meta: revenue rebound but free cash flow under strain

Meta delivered 28% revenue growth, yet its quarter highlighted the tension in hyperscaler strategy: the company’s AI buildout is accelerating revenue but draining cash. Reuters reported free cash flow fell to $784 million in the quarter even as Meta increased guidance for annual capex to a range Reuters put at $125 billion to $145 billion in context of rising memory and data-centre costs.https://www.reuters.com/business/retail-consumer/metas-ai-splurge-lays-bare-its-compute-conundrum-2026-07-30/

Founder Mark Zuckerberg told investors the company believes “there will continue to be a significantly higher margin on selling intelligence rather than selling compute directly,” while acknowledging a “big opportunity obviously to sell compute as well.”https://www.reuters.com/business/retail-consumer/metas-ai-splurge-lays-bare-its-compute-conundrum-2026-07-30/

That argument quieted some short-term skepticism and helped Meta shares recover from an initial sell-off. Yet Reuters Breakingviews cautioned that Big Tech valuations remain “stuck in [an] AI value chain clog,” underlining the risk that heavy spending will not immediately translate into higher multiples.https://www.reuters.com/commentary/breakingviews/big-tech-multiples-stuck-ai-value-chain-clog-2026-07-29/

Investors’ verdict this earnings season is mixed: markets rewarded growth tied to AI consumption, but the mood is not wholly sanguine. The next concrete risk to watch is whether free cash flow and margins for these hyperscalers can withstand another cycle of capex—numbers likely to surface in each company’s next quarterly update and in the upcoming reports from Alphabet and other cloud providers.