
What the evidence says
Tier evidence · Stale
PSA 10$108.9730-day average · Provider-reported approximate sale count: 49 · Evidence date September 3, 2026 · Aging
PSA 9$18.0830-day average · Provider-reported approximate sale count: 48 · Evidence date September 11, 2026 · Aging
PSA 8$12.50overall average · Provider-reported approximate sale count: 10 · Evidence date July 9, 2026 · Stale
PSA 10 versus PSA 9 30-day-average spread: $90.89 · 502.71% premium · 6.03x