SWSH07: Evolving Skies Stormy Mountains 232/203: PSA 9 vs PSA 10
SWSH07: Evolving Skies Stormy Mountains 232/203 shows a wide gem-mint premium between PSA 9 and PSA 10: a $33 dollar gap, with the gem mint multiplier at 4.2x. Based on the most recent PSA 10 sale of $50.99 on May 17, 2026, the math leans toward holding the 9: expected value turns negative at conservative upgrade probabilities once the resub fee is in.
PSA 10
$43.75
Last sale $50.99 on
PSA 9
$10.50
Last sale $10.50 on
PSA 8
$10.55
Last sale $9.44 on
The Spread
The PSA 9 to PSA 10 spread on Stormy Mountains 232/203 (SWSH07: Evolving Skies).
$33
Dollar gap, PSA 9 to PSA 10
4.2x
PSA 10 sells for 4.2x 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
SWSH07: Evolving Skies 232/203 Stormy Mountains is a modern-era release from 2021. The gap between its PSA 9 and PSA 10 prices is $33.
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