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AI Infrastructure Boom Rolls Into 2026 as Investors Weigh Power and Payback Risks

Rising data‑center spending is drawing scrutiny over electricity supply.

Overview

  • Nvidia guided to roughly $65 billion in fiscal Q4 2026 revenue and says it has multi‑year order visibility tied to Blackwell and Vera Rubin, with U.S. policy now permitting some H200 sales to China.
  • Alphabet lifted 2025 capital spending to about $85 billion and signaled a further increase in 2026, while Microsoft reported $34.9 billion in capex in its first fiscal quarter, split between short‑lived chips and long‑lived data‑center assets.
  • The IEA projects global data centers could consume nearly 945 TWh of electricity by 2030, intensifying concerns that power access and grid timelines will constrain buildouts.
  • Wedbush’s Dan Ives called 2026 a proof year for artificial intelligence, forecasting a 20%–25% tech rally and naming Microsoft, Apple, Tesla, Palantir and CrowdStrike as preferred picks.
  • With the S&P 500 up 16% in 2025 on AI leaders, fund flows and commentary reflect both optimism and caution, including Peter Thiel’s fund exiting Nvidia and trimming Tesla while building a large Microsoft stake.