Amazon's Cloud Engine Hits a New Gear — But the Profit Picture Has a Catch

AWS accelerates 37% YoY, driving Amazon past $3T market cap, but negative free cash flow and Anthropic gain raise questions.

The market's verdict on Amazon's latest earnings was swift and emphatic. Shares surged more than 22 percent in a single week, briefly carrying the company past a $3 trillion market capitalization and into territory previously occupied only by Microsoft and Nvidia. That kind of move doesn't happen without a catalyst — and this one came from the cloud division that had spent the past several quarters looking like it had lost its edge.

AWS grew 37 percent year over year in the second quarter of 2026, reaching $42.2 billion in revenue. That's the fastest clip the cloud unit has posted in 18 quarters, and it blew past the roughly 31 percent that analysts had penciled in. The acceleration is a direct rebuke to the bear case that Amazon's AI ambitions had stalled. CEO Andy Jassy is now backing that momentum with an even bigger checkbook: capital expenditures are projected to hit $220 billion this year, up from an earlier plan of $200 billion.

The numbers behind the headline growth are striking. Total company revenue crossed the $200 billion mark for the first time, while operating income jumped 43 percent to $27.5 billion. AWS contributed just 21.1 percent of overall revenue but delivered 60.5 percent of operating profit — up from 53 percent a year earlier. The margin story is equally compelling: AWS posted a 39.4 percent operating margin, and the advertising business, which grew 26 percent, is also pulling its weight. When the highest-margin parts of the business are also the fastest-growing, the arithmetic starts to look compelling.

Perhaps the most reassuring figure for long-term investors is the AWS backlog: $496 billion in contracted but unbilled work. That pipeline suggests demand extends well beyond the current AI hype cycle and gives management a visibility cushion that most technology companies would envy.

But here's where the story gets complicated. Amazon reported net income of $62.6 billion, or $5.75 per share — a record that crushed Wall Street expectations. The catch: $53.4 billion of that came from a non-operating, bookkeeping gain tied to the revaluation of Amazon's stake in AI startup Anthropic. That's a mark-to-market adjustment, not cash generated by selling packages or renting servers. Investors who treat it as evidence of operational strength are reading the wrong line item.

The cash flow statement tells a more sobering story. Free cash flow over the trailing twelve months has turned negative, landing at roughly minus $7.6 billion. The culprit is the infrastructure buildout: capital spending on physical assets reached $169 billion on a trailing twelve-month basis, up 64 percent year over year. Rising storage costs and the rapid construction of new data centers for AI workloads are consuming capital at a ferocious pace. A company trading near record highs while burning free cash flow is making a bet that today's investments will become tomorrow's profits. That wager has paid off so far — but it raises the stakes for any future AWS disappointment.

The guidance for the current quarter adds another wrinkle. Amazon expects revenue between $197 billion and $202 billion, below the $204.1 billion consensus compiled by LSEG. Management attributes the shortfall partly to calendar effects around Prime Day rather than softening demand. Still, a lowered outlook following a blowout quarter is precisely the kind of detail that can trip up a stock already pricing in flawless execution.

The chart suggests the rally may need to catch its breath. The stock hit a 52-week high of €249.00 on August 3 before closing at €240.40 on Tuesday, a daily decline of 2.59 percent. The RSI(14) sits at 66.1 — approaching overbought territory without signaling a clear reversal. Shares trade 19.03 percent above their 200-day moving average of €203.40, a gap that historically suggests at least a pause even in an intact uptrend. The average analyst price target of €279.31 implies roughly 15.4 percent upside from recent levels, suggesting Wall Street hasn't capped its optimism just yet.

One piece of news gave investors a moment of pause: founder Jeff Bezos filed a Form 144 notice to sell 15 million shares worth approximately $4 billion, executed through a pre-arranged 10b5-1 trading plan. Analysts largely view the move as a routine liquidity step rather than a signal about the company's prospects — a reading supported by the fact that it comes alongside the strongest AWS growth in years.

UBS has gone further, projecting Amazon could reach annual net income of $509 billion by 2030 if the AI-driven business model maintains its trajectory — a figure that would surpass current profitability leaders. That's a bold forecast, but it underscores how dramatically the narrative has shifted in just a few weeks.

The setup now demands a degree of discipline. The fundamental story is genuinely stronger — a reacceleration of AWS to 37 percent growth is the kind of number that dismantles bear theses overnight, and the backlog argues against a one-off spike. But the stock has run far and fast, a substantial chunk of the reported profit surge is a valuation adjustment rather than operating income, and the investment cycle is putting real pressure on free cash flow. The market is now demanding that every future quarter at least match this one. That's a high bar — and the margin for error just got thinner.