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Professor Oak's Research
Uncommon · #149/165
Professor Oak's Research #149/165 (Expedition) is worth about $34.84 today, the Near Mint market price from TCGplayer sales as of 2026-10-03.
price trend and all-time high: more ↓less ↑
Professor Oak's Research #149/165 is trending up: $34.84 today, up 7% in 30 days and 5% below its all-time high of $36.56 (2026-10-01). TCGplayer market price as of 2026-10-03, tracked daily since 2024-02-08. chart →
illustrated by Ken Sugimori
Price data for your app or store: API and daily history since 2024 · CSV download
PRINTINGS · WHICH ONE IS YOURS?
Professor Oak's Research #149/165 comes in 2 printings: the Reverse Holofoil is $34.84 and the Normal is $2.22 (TCGplayer market, 2026-10-02).
- Reverse Holofoil · this page$34.84
- Normal · this page$2.22
LOADING TAPE
WORTH GRADING?
Grading Professor Oak's Research #149/165 pays only if you expect a 10: PSA 10 copies list from $1,006 on eBay vs $34.84 raw, and after a $25 grading fee, $10 shipping and 13% selling fees you need about a 5% chance of a 10 to break even. run your own numbers →
WHERE TO BUY AND SELL
Reverse Holofoil · eBay scanned 14d agoBuy-side estimate
$19.95
THINa patient buyer pays about $19.95 delivered, from live asks, not sales
show the work →
TCGplayer $34.84 vs cheapest delivered eBay ask $19.95 — the market hasn't settled on a price yet · 1 outlier ask excluded
| TCGplayer market | $34.84 | verify ↗ |
| TCGplayer lowest ask | $12.68 | |
| eBay delivered floor (scanned 14d ago) | $19.95 | the listing ↗ |
Floors are the median of the three lowest clean asks. Marketplace links may earn TickerMint a commission; it never affects the numbers.
The verdict · premium
Cards 3-15% off their high after a month up 5-25% were higher 90 days later 86% of the time in our archive since 2024 (20,865 cases).
The median move, the verdict and the grade-worthy math: try Premium free for 7 days →GAME DATA[ + ] SHOW[ × ] HIDE
- CARD TYPE
- Supporter
- CARD TEXT
- You can play only one Supporter card each turn. When you play this card, put it next to your Active Pokémon. When your turn ends, discard this card. Shuffle your hand into your deck, then draw 5 cards.
MORE BY KEN SUGIMORI
FULL CATALOG →
MORE FROM EXPEDITION
FULL SET →
PRICE FAQ
Why does Professor Oak's Research #149/165 have two prices?
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Professor Oak's Research #149/165 was printed 2 ways and each one sells separately: Reverse Holofoil $34.84; Normal $2.22 (TCGplayer market, 2026-10-02). Check the set, the rarity mark and any parallel foil, manga art or edition stamp on your copy to know which price is yours; TickerMint prices every printing on its own page.
What would a card shop pay for Professor Oak's Research?
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Shops and show vendors commonly offer about 70% of market in cash and 80% in store credit. At today's $34.84 market price that is roughly $24 cash or $28 trade for a near-mint copy. Selling it yourself on TCGplayer or eBay nets more after fees; see the seller-net answer below.
What is Professor Oak's Research (Expedition) worth today?
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Professor Oak's Research [Reverse Holofoil] has a TCGplayer market price of $34.84 as of 2026-10-02. Across 2 tracked variants, latest prices range from $2.22 to $34.84.
Is Professor Oak's Research going up or down in price?
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Professor Oak's Research #149/165 is trending up: $34.84 today, up 7% in 30 days and 5% below its all-time high of $36.56 (2026-10-01). TCGplayer market price as of 2026-10-03, tracked daily since 2024-02-08.
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