SV: Scarlet & Violet 151 Wigglytuff ex #187: PSA 9 vs PSA 10

SV: Scarlet & Violet 151 Wigglytuff ex #187 shows a wide gem-mint premium between PSA 9 and PSA 10: a $60 dollar gap, with the gem mint multiplier at 4.1x. Based on a recent PSA 10 sale of $79.00 on May 12, 2026, the math leans toward holding the 9: expected value turns negative at conservative upgrade probabilities once the resub fee is in.

PSA 10

$79.00

Last sale $79.00 on May 12, 2026 UTC

PSA 9

$19.46

Last sale $21.50 on May 18, 2026 UTC

PSA 8

$11.23

Last sale $13.40 on Mar 28, 2026 UTC

The Spread

The PSA 9 to PSA 10 spread on Wigglytuff ex #187 SV: Scarlet & Violet 151.

$60

Dollar gap, PSA 9 to PSA 10

4.1x

PSA 10 sells for 4.1x a PSA 9

Three-Outcome EV Calculator

PSA 9 acquisition cost ($)

PSA resub cost ($)

Probability of each outcome (must total 100%)

PSA 10 (upgrade) 15%

PSA 9 (regrade) 70%

PSA 8 (downgrade) 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

Math favors holding the 9

Where this card lands in the broader SV: Scarlet & Violet 151 picture: a non-holo with a $60 gap between PSA 9 and PSA 10. The PSA 9 to PSA 10 jump on WOTC-era cards reflects population scarcity at the top grade, not raw print run.

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