Google ups stake in Bitcoin miner TeraWulf to 14%, WULF jumps 13%

Google’s decision to ups stake in Bitcoin miner TeraWulf to 14%, prompting WULF stock to jump 13%, signals a deepening partnership with a leading AI infrastructure company.

Renowned for operating sustainable, high‑capacity data centers across the United States, TeraWulf announced today that AI cloud services platform Fluidstack will broaden its presence at the Lake Mariner campus in western New York. The expansion solidifies the company’s role as the backbone for advanced AI workloads while reinforcing its reputation in the crypto‑mining space.

Following the announcement, shares in TeraWulf (ticker: WULF) leapt roughly 13 %, with Yahoo Finance reporting the surge at 13.18 %.

The upgraded footprint will feature a brand‑new, purpose‑built data center—CB‑5—capable of delivering 160 MW of critical IT load. Operations are slated to commence in the second half of 2026, aligning with TeraWulf’s broader 10‑year partnership with Fluidstack announced last week.

By adding CB‑5, the total contracted critical IT load for Fluidstack at Lake Mariner will rise to about 360 MW, translate­ing into $6.7 billion in current contractual revenue and potentially scaling to $16 billion should lease extensions come to fruition.

Google will inject an additional $1.4 billion backstop into the project, boosting its total backstop commitment to $3.2 billion. The move also grants Google warrants to purchase 32.5 million shares of TeraWulf’s common stock—raising its pro‑forma ownership to 14 %. This deepened financial backing underscores Google’s confidence in the firm’s long‑term competitive position.

“CB‑5 is a testament to the unmatched scale and capabilities of the Lake Mariner campus,” stated TeraWulf CEO Paul Prager. “By expanding our facility, we not only increase our contractual capacity with Fluidstack but also fortify our strategic partnership with Google as a pivotal financial partner in delivering the next‑generation AI infrastructure.”

Says TeraWulf CTO Nazar Khan that Fluidstack’s swift expansion following the initial deal signals strong endorsement of TeraWulf’s infrastructure. “Like its predecessors, CB‑5 will be purpose‑built for high‑density, liquid‑cooled workloads, leveraging the campus’s dual 345 kV transmission lines, industry‑grade water cooling and ultra‑low‑latency connectivity,” the executive added. “The scale, resource base and robust architecture of TeraWulf provide a solid foundation for any future expansion as Fluidstack’s compute needs grow.”

Both TeraWulf and Fluidstack are already exploring additional capacity upgrades at the Lake Mariner site—a location that ranks among the United States’ largest high‑performance computing campuses.