![Professor Oak's Research [Reverse Holo] #149 from Pokemon Expedition](https://images.pokemontcg.io/ecard1/149.png)
Professor Oak's Research [Reverse Holo] #149 PSA 10: price & population
PSA 10
$96.00
Raw
$19.45
PSA 10 pop
9
Gem rate
11.1%
A PSA 10 Professor Oak's Research [Reverse Holo] #149 from Expedition sells for $96.00 — a 394% premium over the $19.45 raw price. PSA has graded this card 81 times; 9 came back a 10 (11.1% gem rate), and 28 a PSA 9.
The 9-to-10 spread
PSA 9 sells for $36.94. The jump from 9 to 10 is worth $59.06 — 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.
