
What the evidence says
Tier evidence · Aging
PSA 10$918.1930-day average · Provider-reported approximate sale count: 666 · Evidence date September 15, 2026 · Aging
PSA 9$256.6530-day average · Provider-reported approximate sale count: 560 · Evidence date September 10, 2026 · Aging
PSA 8$267.5030-day average · Provider-reported approximate sale count: 106 · Evidence date September 5, 2026 · Aging
PSA 10 versus PSA 9 30-day-average spread: $661.54 · 257.76% premium · 3.58x