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Professor's Research (Professor Oak) — Celebrations (25th) #23
Pull rate1 in 4 packs
Released2021-10

Professor's Research (Professor Oak)

Celebrations (25th) · #23 · HOL
$0.33recent trading $0.29
▲ 14% above recentTrading above its recent sales.
CoolingDemand is falling while listings build up. A description of the data today, not a forecast.
30 daysPrice0%Sales−47%Listings+300%
Repriced 2026-10-28 · Recent trading is descriptive, not a forecast

Price history

Raw price
Raw
$0.35▲ +$0.17 (+94.4%)past 90 days
$0.20$0.27$0.40$0.35
Aug 1Aug 23Sep 14Oct 5Oct 27
Market price
Latest raw market price · $0.35 · Oct 27, 2026
Raw is the daily TCGplayer market price. Fair value is the model's own daily reading, archived since June 2026.

Grading

Grade ladder

Confidence (High / Med / Low) is how much recorded sale history backs the price. Low means only a few sales, so treat it as directional. Prices are eBay-sold medians; ×raw is the grading premium; sales count the last 30 days.
What this card sells for at each grade, and how many sales back each price.
GradePrice× RawLast saleSales 30dConfidence
—Raw$0.33———High
Prices are eBay-sold medians; last sale is the most recent single sale; sales count the last 30 days. Confidence reflects the full sale history behind each price. Low-confidence rows rest on few sales, so treat them as directional.

Grade distribution

How copies sent to PSA have come back.
Gem rate8.2%
PSA graded943
PSA 10
778.2%
PSA 9
39441.8%
PSA 8
33035%
PSA 7
10511.1%
6 & below
373.9%
Other graders · as of Oct 2026
CGC381 graded · 17.8% top · 6 Pristine
BGS32 graded · 0% top
SGC19 graded · 15.8% top
PSA population from our own psacard.com read, Oct 4, 2026. Half grades count toward the grade below (a 9.5 is a 9). Other graders as of Oct 2026.

Market

Supply & demand

How many copies are for sale, and how fast they're selling.
Raw
TCGplayer listings1,6781,480 sellers · 0% vs 7d
Sold / week26▼ 47.5% vs 30d
Demand pressure2% · soft
softhot
Supply trendbuilding · +300%
ClearingBuilding
TCGplayer sales · sold per day
Sep 17Oct 26
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.

Investment Score

One grade for how durable this card's demand looks today.
Data snapshot, not a forecast
—
32/100Limited grading data

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.

30-day moven/a
Grading edgen/a
Time window30d
What drives the scoreout of 10, vs. modeled cards
Demandlimited data
0.7
Scarcity
9.0
Stability
7.6
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