Pokemon Promo · #SM66 · Nov 2016
Should You Grade?
Negative expected value ($-4.80) — while a PSA 10 would be profitable, the probability-weighted outcome across all grades means you lose money on average at this grading tier. Low grading population — gem rates based on only 55 graded cards may be unreliable, and the market for this card in graded form may be illiquid.
Factors in grading cost, turnaround time, and compounding — how fast you can reinvest profits into the next flip.
Shows the best-value tier from each grading company based on EV, cost, and turnaround. Pop = total graded population; 10s = grade 10 count.
