Should You Grade Groudon-EX #XY42 from XY Black Star Promos?
Free PSA grading EV calculator pre-loaded with live market data for Groudon-EX #XY42. Current PSA 10 gem rate is 0.7% based on 144 graded copies. PSA 10 sales average $211.00 vs a raw market of $11.01. Expected value of grading: $-43.11 (-53% ROI). Verdict: Sell raw.
XY Black Star Promos · #XY42 · Promo
Default-tier verdict
Sell raw$-43 (-53% ROI)
Based on raw market $11.01, PSA 10 $211.00, gem rate 0.7% (144 graded). Adjust inputs below for your card's exact condition.
About this calculator
This page computes the expected value (EV) of submitting Groudon-EX #XY42 to PSA for grading. EV factors in real PSA population data (gem rates), live market prices for raw and graded copies, and PSA's tiered fee structure including upcharges when a card's graded value exceeds the tier's Max Insured Value. Adjust the inputs to match your card's exact condition for a personalized recommendation.
PSA population summary
| Grade | Population | Rate |
|---|---|---|
| PSA 10 | 1 | 0.7% |
| PSA 9 | 22 | 15.3% |
| PSA 8 | 30 | 20.8% |
| PSA 7 | 24 | 16.7% |
