SWSH12: Silver Tempest Reshiram V #24: PSA 9 vs PSA 10
The PSA 10 to PSA 9 spread on SWSH12: Silver Tempest Reshiram V #24 is a modest premium: $5, with PSA 10 copies trading at 1.2x a PSA 9. Based on a recent PSA 10 sale of $33.00 on May 20, 2026, the math leans toward holding the 9: expected value turns negative at conservative upgrade probabilities once the resub fee is in.
PSA 10
$33.00
Last sale $33.00 on
PSA 9
$28.00
Last sale $28.00 on
PSA 8
$12.51
Last sale $12.51 on
The Spread
The PSA 9 to PSA 10 spread on Reshiram V #24 SWSH12: Silver Tempest.
$5
Dollar gap, PSA 9 to PSA 10
1.2x
PSA 10 sells for 1.2x 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 #24 Reshiram V Holo released in 2022 sits in the vintage WOTC tier where gem-mint premiums above $5 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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