Professor's Research (Professor Oak)
Celebrations (25th) · #23 · HOL
Professor's Research (Professor Oak)
Celebrations (25th) · #23 · HOL
Overview
Fair-value verdict
Raw
$0.40
Recent trading $0.31
Trading well above its recent sales.
Demand Fading Demand is softening.
Sales −41% · Listings −100%
PSA 10
Grading How often this card grades PSA 10 (gem rate) and how many PSA 10s exist.
Gem rate 9% · 77 PSA 10s
Investment Score
Professor's Research (Professor Oak) scores 32/100. We're withholding a letter grade because it has no PSA-10 graded price yet, so the score leans on demand signals. It's one of the lower-priced cards in Celebrations (25th). It trades at a moderate pace.
- Demandlimited data0.8
- Scarcity9.0
- Stability7.6
This is a snapshot of demand fundamentals, not a forecast and not financial advice. "Gaining steam" just shows that the price has moved recently, not that it'll keep moving. The score measures durability, not how a card behaves in a crash. And keep an eye out for reprints, which can crash a chase card fast no matter how high the grade. Scores compare cards within the modern era (Mega Evolution, Scarlet & Violet, Sword & Shield) — not against vintage.
Price chart
Price history
Sep 12, 2026
Grading
Grade distribution
- PSA 10778.6%
- PSA 937842.3%
- PSA 831234.9%
- PSA 79210.3%
- 6 & below343.8%
PSA population from our own psacard.com read, Aug 25, 2026. Half grades count toward the grade below (a 9.5 is a 9).
Market
Supply & Demand
Supply is the TCGplayer listing count; demand pressure = weekly TCGplayer sales ÷ listings (soft → hot), a single-venue sell-through read. The supply-trend gauge reads eBay where we have it, with the TCGplayer listings trend surfacing as its history matures. Descriptive market context, not a forecast.
See every card priced like this.
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