AI capex boom splits Big Tech as Alphabet and Amazon turn cloud bets into profit while Meta and Microsoft face tougher questions on returns

Four out of the Magnificent Seven released their March-quarter results. Meta Platforms, Amazon, Alphabet, and Microsoft show uniform top-line growth, but fundamentally different outcomes in how AI spending is translating into returns. The divergence is in earnings quality, segment profitability, and cash flow under AI-led capex pressure. Here are the hits and misses by these companies:
Alphabet reported revenue of $109.9 billion (+22% YoY) and operating income of $39.7 billion, with margins expanding despite rising costs — operating margin came in at 36.1%, up two percentage points year-on-year.
Hit: A combination of cloud profitability and search stability. Google Cloud generated $20.03 billion in revenue (+63% YoY) and $6.6 billion in operating income, up sharply from $2.2 billion a year ago. Cloud backlog nearly doubled quarter-on-quarter to over $460 billion. At the same time, Google Services delivered $89.64 billion in revenue, with search queries at all-time highs despite AI integration, and total advertising revenue reaching $77.25 billion.
Miss: Alphabet is scaling infrastructure aggressively, which will pressure margins through higher depreciation and operating costs.
The company raised its full-year capex guidance to $180–190 billion, up from $175–185 billion, signalling continued acceleration in AI infrastructure investment.
Amazon posted revenue of $181.5 billion (+17% YoY) and net income of $30.3 billion (vs $17.1 billion a year earlier). However, this includes a $16.8 billion pre-tax gain from its Anthropic investment, materially inflating reported profit.
Hit: Its cloud segment, the Amazon Web Services (AWS), delivered $37.6 billion in revenue (+28% YoY), its fastest growth in 15 quarters, and $14.2 billion in operating income, at a margin of nearly 38%. AI workloads are increasingly driving demand. North America retail also showed improvement, with $8.3 billion in operating income and an expanded margin of 9%.
Miss: The miss is visible in cash flow and segment imbalance. Free cash flow on a trailing 12-month basis fell to $1.2 billion from $25.9 billion a year earlier, a near-complete collapse driven by infrastructure spending. International operations remain thin, with $39.8 billion in revenue but comparatively modest returns.
Amazon's Q1 capex reached $44.2 billion, above estimates, and the company has signalled full-year capex of approximately $200 billion, reflecting the scale of its AI and data centre expansion.
Meta reported revenue of $56.31 billion (+33% YoY) and net income of $26.77 billion (+61% YoY). However, this includes an $8.03 billion income tax benefit.
Hit: Its core business. The Family of Apps (Instagram, Facebook, WhatsApp, Messenger, and Threads) segment generated $55.91 billion in revenue, with operating income of $26.9 billion, reflecting strong ad pricing and engagement gains driven by AI-led targeting. Ad impressions across the family of apps rose 19% year-on-year, while the average price per ad increased 12%.
Miss: The miss is Reality Labs (virtual and augmented reality arm), which posted revenue of $402 million but an operating loss of $4.03 billion for the quarter, continuing a multi-year pattern of heavy losses with no near-term monetisation visibility. Total costs and expenses rose to $33.44 billion (+35% YoY), and operating income of $22.87 billion, while up 30%, still sits well below what the headline net income figure suggests once the tax benefit is stripped out.
Meta's Q1 capex was $19.84 billion, and the company raised its full-year capex guidance to $125–145 billion, up from its previous range of $115–135 billion, thereby continuing with aggressive spending on AI infrastructure.
Microsoft reported revenue of $82.9 billion (+18% YoY) and net income of $31.8 billion (+23% YoY), driven primarily by cloud.
Hit: Azure and enterprise AI adoption. Microsoft Cloud revenue reached $54.5 billion (+29% YoY), with Azure growing 40%, beating management's own 37–38% guidance, supported by rising AI workloads. The company's AI business has now crossed a $37 billion annualised revenue run rate, up 123% year-on-year. Copilot adoption continues to expand, with over 20 million paid commercial seats, up from 15 million last quarter. The commercial remaining performance obligation increased 99% to $627 billion.
Miss: Monetisation efficiency and weaker non-core segments. Despite Azure's acceleration, the gap between capex and high-margin AI revenue remains a constraint. On the gaming side, Xbox content and services fell 5% year-on-year, and Windows OEM and Devices declined 2%.
Quarterly capex came in at $31.9 billion, notably below analyst estimates of around $35.3 billion.