Amazon’s AI Bet Delivers a Blowout Q2 as AWS Growth Hits 18-Quarter High

Second-Quarter Results Crush Forecasts on AI-Fuelled Cloud Surge

Amazon obliterated Wall Street estimates across every major metric in the second quarter, powered by a dramatic re-acceleration of its cloud business. Net sales climbed 20% year-over-year to $200.6 billion, comfortably ahead of the roughly $197 billion consensus. Operating income jumped 43% to $27.5 billion, driving the operating margin to 13.7% from 11.4% a year earlier, well above the near-12% analysts had pencilled in. Diluted earnings per share printed at $5.75, more than triple the $1.82 forecast—though that figure includes a $53.4 billion non-operating pre-tax gain tied to Amazon’s stake in AI lab Anthropic.

Even stripping out that one-off revaluation, the underlying results were robust. The star was Amazon Web Services, where revenue surged 36.7% to $42.2 billion, an annualised run rate of $169 billion and the segment’s fastest growth in 18 quarters. AWS operating income soared 64% to $16.6 billion, and its segment margin expanded sharply to 39.4% from 32.9%, showing that the topline acceleration came without sacrificing profitability. CEO Andy Jassy highlighted that the company’s AI and custom chip businesses each exceeded a $25 billion revenue run rate and were growing at triple-digit percentages.

The numbers reinforce a narrative that Amazon is winning the race to monetise artificial intelligence infrastructure. Microsoft’s Azure had posted 43% growth a day earlier, while Meta’s rising AI spending weighed on its margins; Amazon’s report landed somewhere in the middle, delivering strong top-line expansion alongside margin gains. The stock, which ended the regular session at $235.50, climbed a further 8.85% in after-hours trading to $256.33 after the release. Still, the quarter was not without friction: capital expenditures on property and equipment hit $54.2 billion in the period alone, pushing trailing 12-month capex to $169 billion, up 64% year-on-year, and driving free cash flow to an outflow of $7.6 billion.

Guidance for the third quarter came in at $197 billion to $202 billion, below the roughly $204 billion consensus. Amazon attributed almost four percentage points of that gap to the timing of Prime Day, but the softer outlook gave sceptics a reason to question whether the AI buildout can sustain such blistering cloud growth when comparisons get tougher next year.

Inside AWS’s 37% Sprint and the Changing Profit Story

AWS’s Record Growth and Margin Expansion

The 37% revenue jump at AWS is not just a rebound from a soft patch; it marks the strongest quarterly expansion since the post-pandemic surge of 2021. More importantly, the unit expanded its operating margin to 39.4%, meaning Amazon is extracting significantly higher profit from every dollar of cloud revenue. That suggests the mix of workloads is shifting toward higher-value AI and advanced services, and that the early discounts offered to attract AI training workloads are not eroding margins as some had feared. CEO Andy Jassy’s disclosure that AI and chips businesses each exceed a $25 billion annualised run rate points to a structural tailwind rather than a one-off spike.

The Anthropic Revaluation and Underlying Profitability

Amazon recorded $53.4 billion in other non-operating income largely from marking up its investment in Anthropic, the developer of the Claude family of AI models. While this gain dominates the headline EPS number, it is not a reflection of operating performance. Excluding it, the business still delivered a solid operating beat, with the core retail and cloud engines generating strong cash flows. The optics, however, matter: the paper gain demonstrates the strategic value of Amazon’s early AI partnerships, and it strengthens the balance sheet at a time when capex is soaking up cash.

The Capex Question: Spending Big for AI’s Future

The scale of investment is stunning. Amazon spent $54.2 billion on property and equipment in a single quarter—more than many large companies spend in a year. Over the past twelve months, capex reached $169 billion, a 64% increase. This drove free cash flow into negative territory for the quarter, even though operating cash flow rose 33% to $161.4 billion. The outlay is largely directed at data centres, networking, and custom AI chips such as Trainium. The critical question is whether these assets will generate a return that justifies the upfront cost. For now, the market is willing to tolerate the cash burn because the cloud revenue and margin numbers are accelerating.

What the Q3 Guidance Actually Signals

Amazon’s revenue forecast of $197–202 billion for the third quarter missed the consensus estimate by around $2–5 billion. The company attributed roughly 400 basis points of the shortfall to the shift of Prime Day from the second quarter into the third quarter last year. If that explanation is accurate, the underlying trajectory is still strong. However, the guide also gives cover to bears who argue that AWS’s 37% growth rate will be hard to sustain when the year-ago comparisons become more demanding in 2024. For now, the tone of the after-hours reaction suggests investors are giving Amazon the benefit of the doubt.

What Amazon’s Quarter Means for Investors and the Cloud Industry

• After-hours surge signals confidence. The stock’s 8.85% after-hours jump to $256.33 implies the market is pricing in that the AI-fuelled acceleration at AWS is durable, not a one-quarter wonder. Investors should watch whether that gain holds in the next regular session.
• AWS margins are a differentiator. AWS’s 39.4% segment margin while growing 37% year-on-year counterpoints Microsoft’s Azure growth (43%) which does not break out profitability in the same way, and contrasts with Meta’s margin compression. This suggests Amazon’s cloud business can invest for growth without destroying returns.
• Anthropic stake adds strategic balance-sheet firepower. The $53.4 billion non-operating gain boosts book value and gives Amazon greater financial flexibility as it pours cash into AI infrastructure. The valuation of this stake will, however, swing with private market sentiment around AI labs.
• Capex is likely to stay elevated. With trailing 12-month capex at $169 billion and growing, Amazon is betting that AI workloads will fill the capacity it is building. Investors should track AWS revenue growth against capex growth—if the gap narrows, it signals that returns are materialising; if capex keeps accelerating while cloud growth plateaus, the free cash flow story will worsen.
• Q3 guidance is less alarming than surface numbers suggest. The $197–202 billion revenue range, roughly $2–5 billion below consensus, can be largely explained by Prime Day calendar shifts. Investors should focus on the underlying run-rate, not the headline miss. The real test comes in the fourth quarter and early next year, when AWS faces tougher year-on-year comparisons.