Traders assign an overwhelming 79.5% implied probability to zero additional Millennium Prize Problems being solved by AI in 2026 because OpenAI’s September Navier-Stokes result remains a proposed, unawarded solution amid ongoing priority disputes and Clay Institute scrutiny, while its early-October release of hundreds of machine-generated proofs targeted other open conjectures rather than the remaining five Millennium problems. The extreme difficulty of problems such as the Riemann hypothesis or Hodge conjecture, combined with typical multi-month validation timelines for formal proofs, makes further breakthroughs before year-end unlikely despite rapid large language model progress in mathematics. No official announcements or verified claims have emerged since the Navier-Stokes announcement, reinforcing market consensus that additional resolutions this year face steep technical and institutional barriers.