Commonwealth Fusion Systems is the source of the deciding information, through its official press releases, technical updates, or formal statements on its website announcing that the SPARC device has achieved First Plasma, defined as the successful ionization of a gas inside SPARC. The outcome is Yes if CFS announces that achievement by 11:59 PM CT on December 31, 2026 and No otherwise. The outcome may be determined early once CFS makes a qualifying announcement, and otherwise becomes final at that deadline. If the source delays publishing information needed for resolution, resolution waits until it is published.

Commonwealth Fusion Systems is the source of the deciding information, through its official press releases, technical updates, or formal statements on its website announcing that the SPARC device has achieved First Plasma, defined as the successful ionization of a gas inside SPARC. The outcome is Yes if CFS announces that achievement by 11:59 PM CT on December 31, 2026 and No otherwise. The outcome may be determined early once CFS makes a qualifying announcement, and otherwise becomes final at that deadline. If the source delays publishing information needed for resolution, resolution waits until it is published.