Amazon’s AI Spending Spooks Wall Street — But the Bet Is Just Beginning

Amazon’s latest Q3 2026 earnings sent its stock tumbling after the company revealed just how expensive its AI ambitions have become. Over the 12 months through September 30, Amazon posted negative free cash flow of roughly $42.4 billion, largely driven by heavy capital spending on AI data centers, custom accelerators and robotics. Cloud arm AWS is still growing solidly, but those infrastructure investments are eating into profits and spooking investors who had hoped AI would already be lifting margins. Coverage also highlights a new strategic tension in e‑commerce: as consumers start to rely on AI shopping agents that compare products and prices on their behalf, Amazon’s ad business could face pressure. The company has reportedly restricted access for some third‑party AI agents, while pushing its own recommendation tools more deeply into the shopping experience. At the same time, Amazon insists that AI is improving warehouse automation and delivery speed, laying the groundwork for future efficiency gains. For markets, the key question now is whether today’s AI spending binge will translate into enough long‑term growth to justify the near‑term hit to earnings.