Why is Amazon stock sliding today?

Amazon stock dropped 5.8% in after-hours trading to reach $229.57 after the company posted a Q3 2026 earnings report that missed Wall Street estimates on both the top and bottom lines, capping a regular session that had already seen shares slide sharply in anticipation of the results.

The company reported earnings per share of $1.89, falling short of the roughly $1.96–$1.97 analyst consensus, while revenue of $201.94 billion came in just below the approximately $202.1–$202.2 billion expected. Compounding the earnings miss, trailing twelve-month free cash flow swung to an outflow of $42.4 billion, compared with an inflow of $14.8 billion a year earlier, as property and equipment purchases surged by roughly $94.8 billion to fund AI infrastructure — with total 2026 capital expenditures on track to approach $220 billion.

Q4 guidance added another layer of disappointment: management projected holiday-quarter revenue of $240 billion to $247 billion, with the midpoint landing at the low end of the roughly $244 billion analyst consensus. Advertising revenue also came in below expectations, offsetting what was otherwise a standout performance from AWS, which grew 39% year-over-year to $46 billion — its fastest pace in nearly five years — and helped Amazon achieve its highest-ever operating margin of 13.9%. Despite the strong cloud result, the broad analyst community, which had been constructive heading into the print with a consensus buy rating and a price target well above current levels, was caught off guard by the magnitude of the cash flow deterioration.

The after-hours reaction did not occur in a vacuum. Earlier in the week, Alphabet’s Q3 report — which showed negative free cash flow driven by over $51 billion in capital spending — had already rattled investor confidence in mega-cap AI spending stories, setting a cautious tone for Amazon’s own release. During the regular session today, the NASDAQ fell 1.2% and the S&P 500 declined 0.6%, reflecting broad-based pressure on technology shares ahead of the earnings wave. Analysts at Truist had flagged ahead of the report that major AI and cloud peers were likely to run negative free cash flow under heavy infrastructure spending, while Oppenheimer pointed to Walmart’s enhanced membership program as a growing competitive threat to Amazon Prime at the value end of the market.

Taken together, the combination of a headline earnings miss, a dramatic reversal in free cash flow, cautious Q4 guidance, and a broader market environment already unnerved by peer results created a perfect storm for the after-hours sell-off, pushing Amazon shares well below their prior close of $243.79 and toward the lower end of their 52-week range of $196–$287.20.