$CIFR · Cipher Digital Inc.

Cipher Digital filed an 8-K disclosing an amendment to its Barber Lake HPC data center lease with Fluidstack and a binding commitment from a leading AI lab for a ten-year follow-on lease. The deal extends the aggregate contracted term to 20 years and adds approximately $5.2 billion in incremental contracted revenue. Cipher will absorb the first $359.3 million of cost overruns, with the tenant reimbursing 50% of excess costs above that threshold at a contracted rate of return.

Extended-hours trading shows CIFR at $18.69, up +3.26% vs the regular close of $18.10, indicating the market is reacting positively to the $5.2B incremental revenue commitment. With a $7.40B market cap, a $5.2B contracted revenue stream represents a substantial portion of enterprise value.

A $5.2B incremental lease commitment from a top-tier AI lab transforms Cipher's contracted backlog and validates its HPC data center strategy at a scale that rivals the largest digital infrastructure

This deal underscores the accelerating arms race among hyperscalers and AI labs to lock in HPC data center capacity years in advance. Cipher joins peers like CoreWeave and Crusoe in converting GPU-cloud/bitcoin mining heritage into long-duration infrastructure leases with investment-grade or blue-

Cipher bears the first $359.3M of cost overruns above the initial Barber Lake budget with no reimbursement; only 50% of costs above that threshold are recoverable. Development delays, counterparty performance risk from Fluidstack and the unnamed AI lab, and reliance on a single-anchor tenant for the