How Amazon (AMZN) Stock Could Fall to $155

What happens to Amazon (AMZN) stock if its most profitable engine slows down just a little bit?

To answer that, we have to acknowledge that Amazon is no longer an ecommerce story; it is an AWS story. While retail certainly moves more gross revenue, AWS is what dictates the operating income and ultimately drives how investors value the company.

In Q4 2025, the cloud division delivered $35.6 billion in revenue and $12.5 billion in operating income, growing at 24% year over year. Currently trading near $210, the stock is heavily reliant on that momentum. But if AWS growth decelerates to 15%, the math changes quickly.

In that case, the stock price could fall as much as 25%, to $155. This is not a worst-case panic scenario. It is a straightforward valuation reset based on a growth rate that, frankly, is not hard to imagine.

Image by Finn from Pixabay

Why would AWS growth fall to 15% in the first place?

Three reasons, each reinforcing the other.

1. The law of large numbers: AWS is now running at an annualized revenue base above $142 billion. Generating 20%+ growth on that base requires adding more than $28 billion in net new revenue every year. That becomes structurally harder with each passing quarter.
2. Competitive pressure is real and intensifying: Microsoft (MSFT) and Google (GOOGL) are aggressively targeting artificial intelligence workload, which is the fastest growing segment of enterprise cloud spend right now (see how Amazon stacks up overall against MSFT, GOOG, META and others in the tech space).
3. Enterprise optimization: Cloud customers have spent the last two years learning how to cut waste out of their cloud bills. That optimization cycle suppresses growth even when underlying demand remains healthy.

None of these factors require a recession or a catastrophic failure. They are ordinary, gradual pressures that compound quietly until a growth deceleration shows up in an earnings report.

What does a 15% AWS growth rate actually do to the valuation?

Markets assign high revenue multiples to cloud businesses growing above 20% (see how the valuation multiple for Amazon has changed over time). At that growth rate, AWS is priced as a high-growth software infrastructure business, and the premium multiple is justified. At 15%, the conversation changes. A 15% growth rate reclassifies AWS as a slightly more mature, albeit excellent, infrastructure business.

A multiple compression analysis captures this perfectly. Amazon currently trades at a forward PE of 26x. However, with decelerating growth in AWS, its most profitable segment, a 20% to 30% cut in its broader valuation multiple seems justified. Applying that haircut brings the multiple down to 20x. With average forward EPS estimates of $7.8 for year 2026, a 20x multiple implies stock price compression to $155 per share. We have seen such 20% to 30% valuation compressions in the tech sector in the past.

There is a capital allocation problem layered on top of this.

Management has guided for approximately $200 billion in capital expenditures in 2026, almost entirely directed at artificial intelligence infrastructure. That number was defensible when AWS was growing at 24% and generating substantial free cash flow. It looks much harder to sustain if growth drops to 15%.

The choice becomes binary. Either Amazon borrows more aggressively to fund the investment program, or it cuts capital expenditures. Cutting capex solves the cash flow problem in the short term but creates a different problem: it cedes competitive ground to Microsoft, which has demonstrated both the willingness and the financial capacity to outspend in AI infrastructure.

However, winning the AI spending war does not automatically guarantee infinite stock appreciation. Even as Microsoft successfully captures these AI workloads, the market’s expectations have become so mathematically demanding that even strong execution is being penalized. For a deeper look at this dynamic, read our related analysis: Why Microsoft’s Growth Isn’t Saving Its Stock. Neither option is clean. Both suppress the stock.

Bottom line

The Q1 2026 earnings report is the next critical data point. Any slowdown in AWS growth in that report will force an immediate reassessment of the growth trajectory.

The bull counterargument rests on advertising, which grew 22% in Q4 2025 at high margins, and continued retail profitability improvement. Both are real. Neither is large enough to absorb a multiple compression event on AWS. They provide a floor, not a rescue.

Stories like AWS are a good reminder that even the best businesses in the world can test your conviction as an investment. A 25% drawdown on a stock like Amazon is not comfortable, regardless of how sound the thesis is. The investors who benefit from the eventual recovery are the ones who stay invested through the volatility.

That’s exactly what The Trefis High Quality Portfolio is designed for. It is a collection of 30 stocks, and has outperformed its benchmark and delivered more than 105% in cumulative returns since inception while dampening the volatility.