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SWSH11: Lost Origin Fantina #191: PSA 9 vs PSA 10

On SWSH11: Lost Origin Fantina #191, the PSA 10 premium is a wide gem-mint premium: PSA 10 sells for 4.1x a PSA 9, a $33 delta. Based on a recent PSA 10 sale of $43.34 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.

SWSH11: Lost Origin Fantina #191
PSA 10
$43.34
Last sale $43.34 on
PSA 9
$10.50
Last sale $10.50 on
PSA 8
$16.95
Last sale $16.95 on

The Spread

The PSA 9 to PSA 10 spread on Fantina #191 SWSH11: Lost Origin.

$33
Dollar gap, PSA 9 to PSA 10
4.1x
PSA 10 sells for 4.1x 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 $33 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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