Google backstops $3.2B for 14% TeraWulf stake

This deal turns Google from a customer ecosystem partner into the credit engine that makes Fluidstack scale possible. Instead of prepaying for capacity or buying the site outright, Google is effectively helping TeraWulf lenders believe Fluidstack can cover a huge long term lease, and in return Google collects warrants that make it a major shareholder in the data center landlord. That lowers financing friction for Fluidstack, while giving Google leverage over scarce AI power and rack capacity.1 2 3 4 5

• The 14% stake was built in two steps. TeraWulf first disclosed in August 2025 that Google backstopped $1.8B of Fluidstack lease obligations for about 8% pro forma equity, then increased that support to about $3.2B when Fluidstack expanded Lake Mariner by another 160 MW, bringing total contracted campus load to about 360 MW.2 3 4
• Mechanically, this is credit enhancement for project debt. TeraWulf disclosed recognition agreements tied to the Fluidstack leases, and later reported 73.58M total Google warrant shares tied to its Google backstops. In plain terms, Google is not operating the site, it is standing behind Fluidstack's payment obligations so TeraWulf can borrow and build with more confidence.5 6 7
• This is more asset light than the model used by some rivals. CoreWeave scaled by borrowing directly against GPUs and long term customer contracts, while Crusoe has also acted as a direct infrastructure provider for Oracle. Fluidstack is instead using Google credit support to lock in third party campus capacity without giving up Fluidstack equity.8 9 10

The next step is likely more of this same triangle, hyperscaler credit, neocloud demand, and public data center financing. If the model keeps working, Fluidstack can keep stitching together very large campuses faster than its balance sheet would normally allow, and Google can keep securing AI capacity through warrants and contract support rather than owning every facility itself.1 4 8 10