Fossil Muk #13: PSA 9 vs PSA 10
Fossil Muk #13 shows one of the widest gaps in vintage WOTC between PSA 9 and PSA 10: a $373 dollar gap, with the gem mint multiplier at 8.3x. Based on a recent PSA 10 sale of $380.00 on May 21, 2026, the crack-and-resub math favors the resub: expected value is positive even at a conservative 15% upgrade probability.
PSA 10
$424.33
Last sale $380.00 on
PSA 9
$51.28
Last sale $67.14 on
PSA 8
$31.71
Last sale $29.50 on
The Spread
The PSA 9 to PSA 10 spread on Muk #13 Fossil.
$373
Dollar gap, PSA 9 to PSA 10
8.3x
PSA 10 sells for 8.3x 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
Where this card lands in the broader Fossil picture: a holo with a $373 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.
More Muk Comparisons
Other Fossil Heavy Hitters
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 rateFirst 100 only. Founding member rate $3.99/mo locked forever.