Hidden Fates Magmar #10: PSA 9 vs PSA 10
Hidden Fates Magmar #10 shows one of the widest gaps in vintage WOTC between PSA 9 and PSA 10: a $57 dollar gap, with the gem mint multiplier at 7.3x. Based on the most recent PSA 10 sale of $66.09 on Apr 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
$66.09
Last sale $66.09 on
PSA 9
$9.04
Last sale $9.04 on
PSA 8
$10.00
Last sale $10.00 on
The Spread
The PSA 9 to PSA 10 spread on Magmar #10 Hidden Fates.
$57
Dollar gap, PSA 9 to PSA 10
7.3x
PSA 10 sells for 7.3x 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
Hidden Fates #10 Magmar released in 2019 sits in the vintage WOTC tier where gem-mint premiums above $57 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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