Why is Amazon stock going up?
Because it showed the AI spending turning into revenue — AWS growing 37% with margins expanding, in the same week rivals were punished for spending without proof. But the headline profit figure is not what it appears, and that part is worth understanding.
The short answer
Amazon rose because it did the one thing the market spent 2026 demanding: it showed the AI spending turning into revenue. AWS grew 37%, its fastest in eighteen quarters, and margins expanded while capital spending rose. Microsoft got rewarded for the same message the same week; Meta and Alphabet were marked down for spending without it.
The number the headlines got wrong
Reported net income was $62.6bn, or $5.75 a share, against roughly $1.81 expected. That looks like one of the largest earnings beats in corporate history. It isn't.
$53.4bn of that came from a non-operating, pre-tax mark-to-market gain, primarily on Amazon's stake in Anthropic. That's an accounting revaluation of an investment, not money the business earned selling anything. Of roughly $80.9bn in pre-tax income, about two thirds was that single item.
Strip it out and underlying profit is somewhere near $21bn — up meaningfully year on year, genuinely good, and nothing like the headline. If you're valuing Amazon on that $5.75 figure, you're capitalising a one-off revaluation as though it recurs every quarter. It won't, and it can reverse.
What actually drove the shares
AWS accelerated rather than slowed
Growth went from 28% in the first quarter to 37% in the second — the fastest in eighteen quarters, and the fifth consecutive quarter of acceleration. That directly answers the bear case, which was that heavy capital spending was chasing demand that might not arrive.
Margins expanded while spending rose
AWS operating margin reached 39.4%, up roughly 650 basis points year on year. Growing and getting more profitable at the same time is unusual, and it's the combination that separates spending which pays from spending which doesn't.
Backlog
AWS contracted backlog was reported around $496bn, growing at triple-digit rates. That's forward revenue already signed — a far better indicator than a single quarter's growth rate.
Advertising quietly compounding
Up 26% to $19.8bn. Amazon's advertising business is now larger than most standalone media companies and carries margins closer to AWS than to retail. It's consistently under-modelled because it's disclosed less prominently.
The bill, which is enormous
Capital spending on property and equipment reached $169bn on a trailing twelve-month basis, up 64%, and full-year guidance rose to roughly $220bn. The consequence shows up where it always does:
Amazon is currently consuming more cash than it generates. Operating cash flow rose 33% to $161.4bn — and capital spending outran it. That's the same arithmetic that hurt Meta; the difference is that Amazon showed the revenue arriving alongside it, so investors extended credit rather than withdrawing it.
What to watch from here
Whether AWS acceleration holds
Five consecutive quarters of acceleration is the whole thesis. A deceleration back toward 25% would still be strong and would still hit the shares, because the price now reflects the higher number.
When free cash flow turns positive again
Negative free cash flow is defensible while it's building revenue-producing capacity. It stops being defensible if it persists after growth normalises.
Underlying earnings, not reported
The Anthropic stake will be revalued every quarter, up or down. Build your own bridge from pre-tax income to operations each time.
Q3 guidance versus delivery
Guidance was $197–202bn of net sales and $22.5–26.5bn of operating income, with management attributing the sequential slowdown to Prime Day timing and currency. Worth checking that explanation against the actual result.
Separate the business from the accounting
Oak Growth values roughly 1,000 companies on discounted cash flow across eight markets, with free cash flow, returns on capital and debt scored on every one.
Explore Oak GrowthCommon questions
Why is Amazon stock going up?
Because its second-quarter 2026 results showed AI and cloud spending converting into revenue. AWS grew 37% — its fastest in eighteen quarters — with operating margin expanding to 39.4%, while total net sales passed $200bn for the first time and operating income rose 43%. That directly answered the concern that heavy capital spending might not pay off.
Did Amazon really earn $62.6bn in a quarter?
Not from operations. Reported net income of $62.6bn includes roughly $53.4bn of non-operating, pre-tax mark-to-market gain, primarily on Amazon's stake in Anthropic. That is an accounting revaluation of an investment rather than profit earned from selling anything, so underlying operations-driven profit was far lower.
How fast is AWS growing?
AWS revenue rose 37% year on year in the second quarter of 2026 to $42.2bn, giving an annualised run rate of about $169bn. That was its fastest growth in eighteen quarters and the fifth consecutive quarter of acceleration, with operating margin reaching 39.4%.
Is Amazon's capital spending a problem?
It has turned free cash flow negative — an outflow of $7.6bn on a trailing twelve-month basis, against an inflow of $18.2bn a year earlier — with full-year capital spending guided to around $220bn. That is defensible while the spending is producing accelerating revenue, and becomes a problem if it persists after growth normalises.
Also see: Amazon (AMZN) full analysis → · The $500bn AI spending question → · Free cash flow explained →