Cards › 2018 Panini Donruss Signature Series Shohei Ohtani #SS-SO

Is the 2018 Panini Donruss Signature Series Shohei Ohtani #SS-SO worth grading?

Live market numbers as of 2026-10-21 — raw vs. graded value, PSA 10 gem rate, and the breakeven math.

Raw value

$1,547.38

PSA 9 value

$1,275.50

PSA 10 value

$5,500.00

PSA 10 gem rate

Based on the numbers below, this card is potentially worth grading — a PSA 10 nets an estimated $2,919, but the 0% gem rate means the 10 is far from guaranteed. Weigh the PSA 9 outcome below.

The breakeven math

Line item	Amount
Raw purchase	$1,547.38
Sales tax (8%)	$123.79
Grading fee (priority tier)	$80.00
Shipping	$5.00
Total cost basis	$1,756.17
Net at PSA 10 (85% payout)	+$2,918.83 (+166%)
Net at PSA 9 (the downside case)	−$672.00

Assumptions: $80 grading, $5 shipping, 8% tax on the raw purchase, and keeping 85% of the sale after marketplace fees. Your numbers will differ — run them below.

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Card pricing data provided by SportsCardsPro, a service of PriceCharting. Gem rates reflect recent PSA population data (12 graded submissions). Not investment advice — grading outcomes are probabilistic and markets move. © Summit Sports Cards · About · Pricing