SLABLYTICS Track Free During Beta

Fossil Magneton #11: PSA 9 vs PSA 10

On Fossil Magneton #11, the PSA 10 premium is one of the widest gaps in vintage WOTC: PSA 10 sells for 5.2x a PSA 9, a $408 delta. Based on a recent PSA 10 sale of $510.00 on May 27, 2026, the crack-and-resub math favors the resub: expected value is positive even at a conservative 15% upgrade probability.

Fossil Magneton #11 Holo
PSA 10
$505.00
Last sale $510.00 on
PSA 9
$97.50
Last sale $90.00 on
PSA 8
$59.92
Last sale $62.00 on

The Spread

The PSA 9 to PSA 10 spread on Magneton #11 Fossil.

$408
Dollar gap, PSA 9 to PSA 10
5.2x
PSA 10 sells for 5.2x 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 Fossil picture: a holo with a $408 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.

Track every grade tier. Spot every gap.

Real PSA prices across every grade tier. Founding member rate $3.99/mo locked forever. First 100 only.

Claim founding member rate
First 100 only. Founding member rate $3.99/mo locked forever.