
What the evidence says
Tier evidence · Aging
PSA 10$1,458.3930-day average · Provider-reported approximate sale count: 760 · Evidence date September 18, 2026 · Fresh
PSA 9$375.6930-day average · Provider-reported approximate sale count: 895 · Evidence date September 20, 2026 · Fresh
PSA 8$325.7730-day average · Provider-reported approximate sale count: 241 · Evidence date September 16, 2026 · Aging
PSA 10 versus PSA 9 30-day-average spread: $1,082.70 · 288.19% premium · 3.88x