Amazon’s stock has reached an uncomfortable crossroads.
The company remains one of the world’s most powerful technology and commerce businesses, but its shares are suddenly being squeezed by two very different forces: a major regulatory challenge to its advertising business and investor concerns about the extraordinary amount of money Amazon is committing to artificial intelligence infrastructure.
Together, those issues have pushed Amazon stock into technical-correction territory—and the deterioration may not be over.
Shares have fallen about 11% from their August all-time high. A roughly 2% decline on Tuesday pushed the stock below its 100-day moving average, a closely watched technical level that can influence how traders interpret the market’s underlying trend. Amazon has also lagged the broader S&P 500 this year, with the stock up about 10% compared with a roughly 12% gain for the benchmark.
The timing could hardly be more uncomfortable.
On Aug. 31, the Federal Trade Commission and 22 states sued Amazon, accusing the company of manipulating its digital advertising auctions and overcharging about 1.2 million advertising customers by more than $20 billion since 2019. The complaint alleges that Amazon secretly replaced competitive auction outcomes with higher prices, increasing revenue from advertisers.
Amazon disputes the allegations.
The company has argued that advertisers receive significant value from its advertising platform and has pushed back on the idea that its practices harmed customers.
But investors do not need the lawsuit to end with Amazon being found liable to worry about the economics.
Advertising has become an increasingly important and profitable part of Amazon’s business. That means any threat to how the company prices or monetizes advertising can raise questions about future margins, cash flow and the durability of one of its most attractive growth engines.
That helps explain why the stock reaction has been sharper than some investors might expect from a legal dispute alone.
The second problem is even larger.
Amazon is spending enormous amounts of money to build the infrastructure required to compete in artificial intelligence.
The company has substantially increased its planned 2026 capital expenditures to approximately $220 billion. That figure is extraordinary even by Big Tech standards and shows how aggressively Amazon is positioning AWS and its wider ecosystem for the next generation of AI demand.
For the long-term bull case, that spending could ultimately prove brilliant.
AI workloads are creating enormous demand for computing power, storage and cloud infrastructure. AWS is one of the world’s largest cloud platforms, and Amazon has the potential to capture significant revenue as companies move more AI workloads onto its infrastructure.
Citi analyst Ronald Josey has remained constructive, arguing that advertisers continue to increase spending on Amazon because of results, while AWS AI demand is accelerating and the company continues to benefit from retail trends and emerging forms of automated commerce.
That is the optimistic side of the equation.
The problem is the cost of getting there.
Evercore ISI analyst Mark Mahaney has warned that Amazon’s capital spending could rise to approximately $320 billion in 2027 and $370 billion in 2028. Under those assumptions, he estimates that Amazon could produce negative free cash flow of roughly $50 billion in each of those years.
For shareholders, that creates a difficult question.
How much future AI growth is enough to justify burning enormous amounts of cash today?
Amazon can afford to invest at a scale that few companies can match. Its retail operations, cloud infrastructure, advertising business and large customer base provide multiple sources of revenue and capital.
But markets have become increasingly sensitive to the difference between spending for future growth and spending that simply requires years of faith before producing an acceptable return.
That concern becomes particularly important when the stock is already under technical pressure.
A break below the 100-day moving average does not automatically mean a company’s fundamentals have deteriorated. Technical indicators can reverse quickly, especially for large technology stocks.
But when a technical breakdown coincides with a major regulatory lawsuit and rapidly rising capital expenditures, investors may become more cautious.
That is what has created Amazon’s current “danger zone.”
The stock market is effectively asking Amazon to prove three things at once.
First, it must demonstrate that its advertising business can keep growing despite increasing regulatory scrutiny.
Second, AWS must convert the AI boom into substantial and sustainable revenue growth.
Third, Amazon must convince investors that its aggressive capital spending will eventually translate into stronger profitability and free cash flow rather than an extended period of enormous cash outlays.
The company’s response to the advertising lawsuit will therefore matter, but the AI investment story may matter even more over time.
The irony is that Amazon’s biggest strength is also part of the current concern.
The company has the financial resources and scale to spend aggressively on AI infrastructure. Few competitors can match its ability to make enormous investments across cloud computing, data centers and commerce technology.
Yet Wall Street eventually wants a return.
Investors can tolerate huge capital expenditures when they believe those investments are building a dominant future business. They become far less patient when spending rises faster than visible cash generation.
Amazon therefore finds itself in a classic transition period.
The market is not necessarily questioning whether the company will remain a major force in technology. Instead, investors are debating how much they should pay today for the growth Amazon says it is building for tomorrow.
The 11% retreat from the August high shows that the debate is already affecting the share price.
A technical correction can end with a rebound just as quickly as it begins.
And there are still plenty of reasons for bulls to remain optimistic, from accelerating AI demand at AWS to the continued expansion of Amazon’s advertising ecosystem and its powerful retail platform. Citi’s bullish assessment illustrates why some analysts see recent weakness as an opportunity rather than the start of a prolonged decline.
But the market has drawn a line in the sand.
Amazon now has to prove that its giant AI bill can eventually produce giant returns.
Until investors become more comfortable with that equation, the stock may remain vulnerable—even if the underlying company remains one of the most formidable businesses in the world.