SWSH11: Lost Origin Arezu #189: PSA 9 vs PSA 10
The PSA 10 to PSA 9 spread on SWSH11: Lost Origin Arezu #189 is one of the widest gaps in vintage WOTC: $42, with PSA 10 copies trading at 6.7x a PSA 9. Based on a recent PSA 10 sale of $49.99 on May 29, 2026, the math leans toward holding the 9: expected value turns negative at conservative upgrade probabilities once the resub fee is in.
PSA 10
$49.99
Last sale $49.99 on
PSA 9
$7.51
Last sale $5.50 on
PSA 8
$6.50
Last sale $6.50 on
The Spread
The PSA 9 to PSA 10 spread on Arezu #189 SWSH11: Lost Origin.
$42
Dollar gap, PSA 9 to PSA 10
6.7x
PSA 10 sells for 6.7x 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 SWSH11: Lost Origin picture: a non-holo with a $42 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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