SLABLYTICS Track Free During Beta

SWSH12: Silver Tempest Lugia V 138/195: PSA 9 vs PSA 10

The PSA 10 to PSA 9 spread on SWSH12: Silver Tempest Lugia V 138/195 is an unusually wide gem-mint premium: $166, with PSA 10 copies trading at 5.7x a PSA 9. Based on the most recent PSA 10 sale of $203.74 on May 30, 2026, the math leans toward holding the 9: expected value turns negative at conservative upgrade probabilities once the resub fee is in.

SWSH12: Silver Tempest Lugia V 138/195 Holo
PSA 10
$200.99
Last sale $203.74 on
PSA 9
$34.99
Last sale $34.99 on
PSA 8
$23.39
Last sale $21.50 on

The Spread

The PSA 9 to PSA 10 spread on Lugia V 138/195 (SWSH12: Silver Tempest).

$166
Dollar gap, PSA 9 to PSA 10
5.7x
PSA 10 sells for 5.7x a PSA 9

Three-Outcome EV Calculator

15%
70%
15%
Defaults are conservative starting points. Adjust based on the specific slab. A borderline 9 with strong centering plays differently than a 9 with edge wear.
PSA 10 outcome (sale price minus resub minus acquisition) $0
PSA 9 outcome (regrade, no upgrade) $0
PSA 8 outcome (downgrade, slower sell, tied capital) $0
Expected Value
$0
Math favors holding the 9

SWSH12: Silver Tempest 138/195 Lugia V Holo is a modern-era release from 2022. The gap between its PSA 9 and PSA 10 prices is $166.

Track every grade tier. Spot every gap.

Real PSA prices across every grade tier. Free during beta.

Get Free Beta Access
Founding Member Cohort · Limited to the First 100 Members.