Recent U.S. nuclear testing remains unlikely through early 2027 according to trader consensus, reflecting sustained congressional opposition, expert assessments that explosive tests are unnecessary for stockpile stewardship, and procedural timelines of six to 24 months for site readiness at the Nevada National Security Site. The administration has issued directives to prepare testing capabilities in response to alleged foreign low-yield detonations, yet National Nuclear Security Administration officials have reiterated no technical requirement exists. Recent activity includes non-nuclear chemical explosive experiments in Nevada tunnels to refine detection algorithms for decoupled blasts, alongside plutonium pit production approvals at Savannah River and Los Alamos aimed at warhead modernization without explosive verification. Key upcoming factors include any executive actions on test readiness or Senate confirmation debates that could alter the current low implied probabilities.