Is Michael Porter Jr. #MPJ worth grading?
Basketball · Basketball Cards 2018 Panini Donruss Significant Signatures · full price guide →
Strong grading candidate — 4.2× premium in Grade 9.5
A Grade 9.5 Michael Porter Jr. #MPJ sells for $82.00 against $19.47 raw: a $62.53 spread, 4.2× the ungraded price. A PSA 9 ($22.24) only about breaks even after fees, so the case rests on gemming. Centering is the usual reason a clean copy misses the 10 — measure it before you submit.
- Raw (NM)
- $19.47
- Grade 9.5
- $82.00
- PSA 9
- $22.24
- Gem premium
- 4.2×
- As of
- Sep 4, 2026
Break-even by outcome and fee
| If it comes back… | Sells for | Economy / bulk (~$25.00) | Standard (~$50.00) | Express (~$150) |
|---|---|---|---|---|
| Gem — Grade 9.5 | $82.00 | +$37.53 | +$12.53 | −$87.47 |
| PSA 9 | $22.24 | −$22.23 | −$47.23 | −$147 |
Net = sale price − $19.47 raw value − fee. Fee tiers are illustrative; plug your grader's current price into the calculator below.
Expected value — how often does it need to gem?
| Chance it gems | Expected sale | Expected net (standard fee) |
|---|---|---|
| 25% | $37.18 | −$32.29 |
| 50% | $52.12 | −$17.35 |
| 75% | $67.06 | −$2.41 |
Break-even gem rate at the standard fee: about 79%. Centering is the usual reason a clean copy misses — measure it before you decide.
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Grading Michael Porter Jr. #MPJ — FAQ
Is Michael Porter Jr. #MPJ worth grading?
A Grade 9.5 Michael Porter Jr. #MPJ sells for $82.00 against $19.47 raw: a $62.53 spread, 4.2× the ungraded price. A PSA 9 ($22.24) only about breaks even after fees, so the case rests on gemming. Centering is the usual reason a clean copy misses the 10 — measure it before you submit.
What gem rate makes grading Michael Porter Jr. #MPJ break even?
At a standard ~$50 fee, submitting Michael Porter Jr. #MPJ breaks even when it gems about 79% of the time (a miss assumed to sell at the PSA 9 price of $22.24).
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