SWSH12: Silver Tempest Skuntank V #180: PSA 9 vs PSA 10
The PSA 10 to PSA 9 spread on SWSH12: Silver Tempest Skuntank V #180 is a wide gem-mint premium: $23, with PSA 10 copies trading at 3.4x a PSA 9. Based on a recent PSA 10 sale of $32.00 on May 6, 2026, the math leans toward holding the 9: expected value turns negative at conservative upgrade probabilities once the resub fee is in.
PSA 10
$32.00
Last sale $32.00 on
PSA 9
$9.33
Last sale $11.99 on
PSA 8
$7.20
Last sale $7.20 on
The Spread
The PSA 9 to PSA 10 spread on Skuntank V #180 SWSH12: Silver Tempest.
$23
Dollar gap, PSA 9 to PSA 10
3.4x
PSA 10 sells for 3.4x 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 #180 Skuntank V released in 2022 sits in the vintage WOTC tier where gem-mint premiums above $23 are common. PSA 10 populations shrink faster than supply on cards of this era, which is why the upgrade arbitrage stays alive.
More Skuntank Comparisons
Other SWSH12: Silver Tempest Heavy Hitters
Track every grade tier. Spot every gap.
Real PSA prices across every grade tier. Founding member rate $3.99/mo locked forever. First 100 only.
Claim founding member rateFirst 100 only. Founding member rate $3.99/mo locked forever.