U.S. Artificial Intelligence Infrastructure Boom Faces $10 Trillion Financing Test as Data Center Projects Stall

Highlights

• At least 47 major U.S. data center projects were delayed, blocked, or withdrawn in 2026, with Bernstein analysts calling only 35% of the pipeline credible.
• CoreWeave shares fell nearly 25% in a single week as financing pressure and community resistance stall construction across the sector.
• Critical mineral suppliers face a Transition Vulnerability Window as they invest in new capacity while data center demand growth slows.
• Copper and electrical infrastructure have the most direct exposure to delays; rare earth magnet demand cannot be translated directly from AI spending figures.
• REEx advises investors to track funded construction, grid connections, and actual mineral consumption rather than announced AI spending totals.