Mega Swampert EX #XY87 PSA 10: price & population
PSA 10
$579.00
Raw
$28.82
PSA 10 pop
1
Gem rate
0.3%
A PSA 10 Mega Swampert EX #XY87 from Promo sells for $579.00 — a 1,909% premium over the $28.82 raw price. PSA has graded this card 363 times; 1 came back a 10 (0.3% gem rate), and 30 a PSA 9.
The 9-to-10 spread
PSA 9 sells for $482.50. The jump from 9 to 10 is worth $96.50 — that spread, times your real odds of the 10, is what decides whether grading pays.
Prices from real completed sales, updated daily. Population data from PSA's public population report.
