SWSH12: Silver Tempest Radiant Alakazam #59: PSA 9 vs PSA 10
On SWSH12: Silver Tempest Radiant Alakazam #59, the PSA 10 premium is a wide gem-mint premium: PSA 10 sells for 3.2x a PSA 9, a $47 delta. Based on a recent PSA 10 sale of $75.00 on May 30, 2026, the math leans toward holding the 9: expected value turns negative at conservative upgrade probabilities once the resub fee is in.
PSA 10
$68.47
Last sale $75.00 on
PSA 9
$21.71
Last sale $19.50 on
PSA 8
$4.99
Last sale $4.99 on
The Spread
The PSA 9 to PSA 10 spread on Radiant Alakazam #59 SWSH12: Silver Tempest.
$47
Dollar gap, PSA 9 to PSA 10
3.2x
PSA 10 sells for 3.2x 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
Where this card lands in the broader SWSH12: Silver Tempest picture: a non-holo with a $47 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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