Amazon's AWS Accelerates: What It Means for AMZN Stock

Amazon Web Services (AWS) reported third-quarter revenue of $46 billion, up 39% year over year, marking its fastest growth rate in nearly five years. For a business generating over $180 billion in annual revenue, this acceleration is remarkable and signals robust demand for cloud and AI services.

The cloud unit's operating income surged 55% to over $17 billion, accounting for roughly 60% of Amazon's total operating profit. This underscores AWS's role as the company's primary profit engine.

Perhaps most encouraging is the outlook: AWS's contracted revenue backlog reached $578 billion, more than tripling year over year. Additionally, usage of Amazon Bedrock, AWS's AI inference service, is exploding, with Fortune 500 customers spending about seven times more than a year earlier.

Despite these strong results, Amazon's stock declined following the earnings release as investors focused on the company's massive spending plans. Amazon raised its 2026 capital expenditure forecast to $220 billion from $200 billion, and CEO Andy Jassy indicated that even this may not fully meet demand.

The market's reaction highlights the tension between AWS's impressive growth and the hefty investments required to sustain it. However, the latest numbers provide compelling evidence that these investments are yielding results.

The acceleration in AWS's growth is significant because it demonstrates that AI demand is translating into real revenue. For a business of this scale to speed up rather than slow down is rare and suggests Amazon is effectively monetizing its AI investments.

The strong backlog and surging Bedrock usage provide visibility into future revenue, reinforcing management's confidence that AWS could become a trillion-dollar business within 5 to 10 years. This outlook supports the bull case for Amazon stock.

However, the massive spending is weighing on free cash flow, and any slowdown in AI demand could prolong the timeline to profitability. This risk has kept some investors on the sidelines, leading to short-term stock volatility.

Nonetheless, the evidence indicates that Amazon's investments are meeting demand rather than chasing it. Faster growth, rising profits, and a robust backlog suggest the spending is justified and positions Amazon for sustained long-term growth.

For investors, the key takeaway is that Amazon's cloud business is accelerating at a scale few companies have achieved, and management expects momentum to last through at least 2028. While short-term swings may occur, the long-term trajectory looks promising.