
What the evidence says
Tier evidence · Aging
PSA 10$545.2230-day average · Provider-reported approximate sale count: 148 · Evidence date September 14, 2026 · Aging
PSA 9$86.4230-day average · Provider-reported approximate sale count: 198 · Evidence date September 5, 2026 · Aging
PSA 8$47.1030-day average · Provider-reported approximate sale count: 132 · Evidence date September 7, 2026 · Aging
PSA 10 versus PSA 9 30-day-average spread: $458.80 · 530.90% premium · 6.31x