Amazon.com, Inc. (NASDAQ:AMZN) has one of the strangest moats in the stock market because it is not really one moat.
Its retail business has scale, its logistics network enables fast delivery, Prime keeps customers coming back, advertising monetizes shopping activity, and AWS gives Amazon a huge technology business. The real advantage is how these businesses reinforce each other.
Amazon ranks first in our list of 10 Best Growth Stocks to Buy Now According to Billionaires.
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Amazon’s moat is the ecosystem
Millions of third-party sellers expand Amazon’s selection, which attracts more customers. More customers attract more sellers. Amazon then layers fulfillment, payments, and advertising on top.
Amazon’s logistics network is another part of the moat that is easy to underestimate. The company has spent years building warehouses, delivery systems, software, and automation that allow it to move products faster and more efficiently. Because Amazon handles such a huge number of orders, it can spread those costs across a massive volume of sales. In the first half of 2026, it delivered more than 40% more items the same day or overnight than it did a year earlier, even as it continued to bring down its cost to serve. That is difficult for a competitor to copy. Building an online store is relatively easy. Building the machine that gets millions of products to customers quickly is not.
Prime makes the ecosystem even stickier. Customers pay for faster shipping but also get access to video, sports, and other benefits, giving them more reasons to keep the membership. Amazon said Prime membership continued to grow at a double-digit rate in Q2, while paid units sold increased 17% year over year.
Then there is advertising. Amazon is monetizing shopping intent it already owns. Someone searching for a product on Amazon may be close to buying, making that customer valuable to advertisers. The ad business generated $19.8 billion in Q2 revenue, up 26% year over year.
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AWS changes the economics
AWS is where Amazon’s moat becomes even more interesting.
Cloud computing is difficult to replicate because customers are not simply renting servers. They are building applications, databases, and AI systems on a provider’s infrastructure. Once those workloads are deeply integrated, switching can be expensive and disruptive.
Amazon is adding more of the technology itself, including custom chips and AI services. Bedrock lets businesses use different AI models, while Amazon Q provides AI tools for workplace tasks. Amazon is trying to make AWS useful across more layers of the technology stack.
AWS reached a $169 billion annualized revenue run rate in Q2, with revenue growing 36.7% year over year. Amazon’s AI revenue run rate also surpassed $25 billion.
As companies put more AI into production, they need compute, storage, security, and networking around those workloads. Amazon says customers increasingly want that infrastructure near their existing applications and data, much of which already runs on AWS.
The problem with Amazon’s moat
There is a cost to maintaining all this scale.
Amazon.com, Inc. (NASDAQ:AMZN) expects roughly $220 billion of cash capital expenditures in 2026, largely for AWS and AI. Management believes these investments can produce strong returns over time, but the near-term cash burden is massive.
Retail is also becoming more complicated. Grocery, pharmacy, same-day delivery, and other services create opportunities, but they require more infrastructure and operational execution.
Regulation is another risk. In August, the FTC and 22 states sued Amazon over its advertising practices, alleging that the company manipulated ad auctions to raise costs for advertisers. Amazon denies the allegations. The case highlights a broader issue: the larger Amazon becomes, the more regulators may question how it uses that power.
AI could also attack part of Amazon’s moat. If consumers increasingly discover products through AI assistants instead of Amazon’s own search, the company could lose some control over shopping discovery. Amazon is responding with Alexa for Shopping, but it still has to prove AI strengthens its position rather than weakens it.
Does the valuation make sense?
Amazon trades at 23.64x forward earnings.
Excluding Tesla, the other six Magnificent Seven stocks average 25.63x. Amazon is about 8% below that average. Only Meta and Alphabet are cheaper, while Apple trades at 35.21x.
That discount is interesting because Amazon is not behaving like a mature, slow-growth company. Revenue rose 20% in Q2, AWS accelerated to 36.7% growth, and operating income increased 43%. In fact, the company’s top line has seen consistent robust growth over the years.
The question is whether Amazon’s retail scale, logistics, Prime, advertising, and AWS can keep producing higher profits and attractive returns on the huge amounts of capital it is deploying.
Conclusion
Amazon seems to have one of the strongest moats in the Magnificent Seven. Its advantage is not a single product. It is the network of businesses supporting one another.
At 23.64x forward earnings, investors are not paying a premium for that moat. The bigger risk is execution. Amazon has to prove that its huge AI spending will create even stronger economics. If it does, the discount to the Mag 7 will be hard to justify.
Market Sentiment
Hedge fund sentiment toward Amazon strengthened in the second quarter. According to Insider Monkey’s database, 369 hedge funds held Amazon in Q2, up from 353 funds in Q1, while the value of their positions increased from $77.61 billion to $97.10 billion.
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This article is originally published at Insider Monkey.
