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Image shows the card, not the Reverse Holofoil finish priced here.

Professor's Research [Professor Oak]

Common · #122/131

Professor's Research [Professor Oak] #122/131 (SV: Prismatic Evolutions) is worth about $0.19 today for a Reverse Holofoil copy, the TCGplayer market price for any condition as of 2026-11-05, down 24% over 30 days. Non-holo copies are $0.23. Updated 2026-11-05

This card has 4 printings (TCGplayer market, 2026-11-05): Common Reverse Holofoil from SV: Prismatic Evolutions $0.19 (this page), Promo Reverse Holofoil from Professor Program Promos $1.37, Poke Ball Pattern Common Holofoil from SV: Prismatic Evolutions $0.32, Common Normal from SV: Prismatic Evolutions $0.23 (on this page's chart).

Price trend and all-time highmore ↓

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Price data for your app or store: free API key · daily history since 2024 · CSV download

illustrated by Hideki Ishikawa

$0.19

▼ 24.0%· 30d

TCGplayer market · daily · any condition ↗

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Recent sales · NM · TCGplayereBay sold ↗

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WORTH GRADING?

WHERE TO BUY AND SELL

Reverse Holofoil · no eBay scan yet

TCGplayer

$0.01

lowest listing · market $0.19

buy on TCGplayer ↗

eBay · raw

no listings

no scan yet

shop active ↗ · sold ↗

eBay · PSA 10

no graded listings

no graded asks in the last scan

PSA 10 sold listings ↗

Buy-side estimate

$0.23

THIN

a patient buyer pays about $0.23 delivered, from live asks, not sales

show the work →

TCGplayer only, no eBay scan yet

TCGplayer market	$0.23	verify ↗
TCGplayer lowest ask	$0.01

Single source: TCGplayer market (no usable eBay asks in the last scan).

v2 · the full published formula →

The verdict · premium

Cards 15-40% off their high after a month down 5-25% were higher 90 days later 54% of the time in our archive since 2024 (9,009 cases). That rate is mostly the 202448 to 5877 to 86marketplace fees of about 13% most short holds lose money. Use it to time a sale, not to flip.

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GAME DATA[ + ] SHOW

CARD TYPE: Trainer - Supporter
CARD TEXT: Discard your hand and draw 7 cards.

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PRICE FAQ

What is Professor's Research [Professor Oak] (SV: Prismatic Evolutions) worth today?

Professor's Research [Professor Oak] [Reverse Holofoil] has a TCGplayer market price of $0.19 as of 2026-11-05. Non-holo copies are $0.23.

Is Professor's Research [Professor Oak] going up or down in price?

Professor's Research [Professor Oak] #122/131 is trending down: $0.19 today, down 24% in 30 days and 81% below its all-time high of $0.99 (2025-01-17), but 2.1x its low of $0.09 (2026-06-25). TCGplayer market price as of 2026-11-05, tracked daily since 2025-01-17. Other windows: up 26.7% over 7 days, up 5.6% over 90 days, up 5.6% over a year. A 30-day drop this size is common after a reprint or a set rotation; the daily chart shows whether it has found a floor.

What is the all-time high price for Professor's Research [Professor Oak]?

In TickerMint's daily data (since February 2024), the TCGplayer market price for Professor's Research [Professor Oak] [Reverse Holofoil] (all conditions) peaked at $0.99 (2025-01-17) and bottomed at $0.09 (2026-06-25).

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