SV04: Paradox Rift Armarouge ex #218: PSA 9 vs PSA 10

On SV04: Paradox Rift Armarouge ex #218, the PSA 10 premium is one of the widest gaps in vintage WOTC: PSA 10 sells for 6.5x a PSA 9, a $46 delta. Based on the most recent PSA 10 sale of $50.00 on Apr 22, 2026, the math leans toward holding the 9: expected value turns negative at conservative upgrade probabilities once the resub fee is in.

PSA 10

$55.00

Last sale $50.00 on Apr 22, 2026 UTC

PSA 9

$8.50

Last sale $8.50 on Jan 19, 2026 UTC

PSA 8

$16.00

Last sale $16.00 on Feb 28, 2026 UTC

The Spread

The PSA 9 to PSA 10 spread on Armarouge ex #218 SV04: Paradox Rift.

$46

Dollar gap, PSA 9 to PSA 10

6.5x

PSA 10 sells for 6.5x 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

SV04: Paradox Rift #218 Armarouge ex released in 2023 sits in the vintage WOTC tier where gem-mint premiums above $46 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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