SV: Scarlet & Violet 151 Switch #206: PSA 9 vs PSA 10

On SV: Scarlet & Violet 151 Switch #206, the PSA 10 premium is one of the widest gaps in vintage WOTC: PSA 10 sells for 8.8x a PSA 9, a $116 delta. Based on a recent PSA 10 sale of $149.99 on May 10, 2026, the math leans toward holding the 9: expected value turns negative at conservative upgrade probabilities once the resub fee is in.

PSA 10

$131.24

Last sale $149.99 on May 10, 2026 UTC

PSA 9

$15.00

Last sale $6.38 on May 25, 2026 UTC

PSA 8

$8.75

Last sale $12.00 on May 3, 2026 UTC

The Spread

The PSA 9 to PSA 10 spread on Switch #206 SV: Scarlet & Violet 151.

$116

Dollar gap, PSA 9 to PSA 10

8.8x

PSA 10 sells for 8.8x 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

SV: Scarlet & Violet 151 #206 Switch released in 2023 sits in the vintage WOTC tier where gem-mint premiums above $116 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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