SWSH12: Silver Tempest Unown V #176: PSA 9 vs PSA 10
On SWSH12: Silver Tempest Unown V #176, the PSA 10 premium is a wide gem-mint premium: PSA 10 sells for 3.2x a PSA 9, a $33 delta. Based on a recent PSA 10 sale of $50.00 on May 19, 2026, the math leans toward holding the 9: expected value turns negative at conservative upgrade probabilities once the resub fee is in.
PSA 10
$48.51
Last sale $50.00 on
PSA 9
$15.34
Last sale $19.69 on
PSA 8
$10.50
Last sale $10.50 on
The Spread
The PSA 9 to PSA 10 spread on Unown V #176 SWSH12: Silver Tempest.
$33
Dollar gap, PSA 9 to PSA 10
3.2x
PSA 10 sells for 3.2x 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 #176 Unown V released in 2022 sits in the vintage WOTC tier where gem-mint premiums above $33 are common. PSA 10 populations shrink faster than supply on cards of this era, which is why the upgrade arbitrage stays alive.
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