Should You Grade Zekrom ex #158 from Black Bolt?
Free PSA grading EV calculator pre-loaded with live market data for Zekrom ex #158. Current PSA 10 gem rate is 62.8% based on 2,899 graded copies. PSA 10 sales average $74.99 vs a raw market of $5.24. Expected value of grading: $-15.14 (-20% ROI). Verdict: Sell raw.
Black Bolt · #158 · Ultra Rare
Default-tier verdict
Sell raw$-15 (-20% ROI)
Based on raw market $5.24, PSA 10 $74.99, gem rate 62.8% (2,899 graded). Adjust inputs below for your card's exact condition.
About this calculator
This page computes the expected value (EV) of submitting Zekrom ex #158 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 | 1,821 | 62.8% |
| PSA 9 | 965 | 33.3% |
| PSA 8 | 98 | 3.4% |
| PSA 7 | 8 | 0.3% |
