Big tech’s 2025 AI capex race: Amazon leads the pack with $125B+ spend

The numbers are staggering. In 2025, Amazon, Microsoft, Alphabet and Meta are collectively guiding to $360–400 billion in capital expenditures – a ~60% year-over-year increase, with the overwhelming majority directed toward AI-related infrastructure (data centres, custom silicon, GPU/Trainium clusters).
On 24 November 2025, BNP Paribas Exane initiated coverage on Amazon with an Outperform rating and a $320 price target - currently the highest among major brokers and implying ~39% upside from the 26 November close of ~$230.
2025 capex guidance - The big four
Sources: Company filings, earnings calls, BNP Paribas Exane, BBC, Bloomberg, Reuters
Why BNP Paribas exane sees Amazon differently
Analysts at BNP Paribas Exane argue that concerns about Amazon under-investing or being late in AI are “overblown” in light of the company’s disclosed spending and pipeline. Amazon’s finance team has discussed a 2025 capex outlook of roughly $125B, with expectations for a higher figure in 2026, and has indicated that the vast majority is focused on AI-focused infrastructure such as data centres, networking and in-house accelerators for AWS.
The note highlights several points that differentiate Amazon in this capex cycle:
- Vertical integration: By designing its own AI chips such as Trainium and Inferentia, management has indicated potential cost and efficiency benefits relative to relying solely on third-party GPUs, which could help with both pricing and capacity flexibility over time.
- Multiple monetisation channels: The AI infrastructure is positioned to support not only AWS enterprise and government workloads but also improvements in advertising relevance, logistics optimisation, and consumer-facing services, giving Amazon several ways to translate infrastructure into revenue.
- Long-term margin narrative: The firm’s thesis references scenarios where AWS growth re-accelerates into the mid-20% range and advertising grows at 20–25%+ annually, contributing to potential group-level operating margin expansion over a multi-year horizon, though actual outcomes will depend on execution and demand.
Key investor debates & risks
Upcoming catalysts/data points
- AWS re:Invent - early December 2025
Market participants will likely watch for announcements on new AI services, model offerings, and capacity expansions, as well as customer case studies that illustrate production-scale workloads.
- Amazon Q4 2025 results - expected late January / early February 2026
Key metrics to watch include AWS revenue growth rates, segment operating income, and management commentary on AI-driven demand and 2026 capex plans.
- Peer earnings and updated guidance - early 2026
Earnings from Microsoft, Alphabet and Meta in early 2026 are expected to provide fresh details on capex trajectories, AI product adoption, and how each company is balancing investment with free cash flow.
These events may offer more clarity on how quickly AI investments are translating into revenue and whether capex levels remain elevated, moderate, or increase further in 2026.
Amazon technical insights
At the start of writing, Amazon (AMZN) is trading near $229, recovering modestly from recent lows while holding above key supports at $218.45 and $213. A drop below these zones could trigger sell liquidations, while a push higher puts the $250.15 resistance level back in focus - an area where traders may take profits or look for renewed buying.
The RSI remains flat around 50, signalling neutral momentum and suggesting the market is still searching for direction after the recent pullback.

The performance figures quoted are not a guarantee of future performance.