Meta has committed to take up to $15 billion of capacity, at our option, over a five‑year contract; a separate five‑year agreement framed at more than $27 billion is also referenced, and which anchor it belongs to is still being confirmed against the filing. An outside read puts Microsoft and Meta together at more than 90 % of backlog, but no exact split is disclosed and the precise share remains an open question until the next annual filing. Still the very early days.