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Professor Oak's Research
How much is Professor Oak's Research 149/165 (Expedition Base Set) worth?
Professor Oak's Research 149/165 (French Recherches du professeur Chen, Expedition Base Set · EX, normal, language per Cardmarket listing, 2002) is worth €2.37 on 13 October 2026 (Cardmarket trend).
Cardmarket 30-day average: €1.42; lowest listing: €0.05. In the US, TCGplayer lists it at $2.27.
Trend of the Cardmarket listing across all conditions and editions of this print, excluding reverse holo; graded copies trade separately.
Has Professor Oak's Research 149/165 gone up in value?
Professor Oak's Research 149/165 (French Recherches du professeur Chen, Expedition Base Set · EX, normal, language per Cardmarket listing, 2002) is priced at €2.37 on 13 October 2026: +259.1% since 30 December 2024 (€0.66) and +76.9% since 13 September 2026 (€1.34), based on the Cardmarket trend.
| Date | € | Change to latest quote |
|---|---|---|
| 13 October 2026 | €2.37 | +0.0% |
| 13 September 2026 | €1.34 | +76.9% |
| 17 June 2026 | €0.90 | +163.3% |
| 30 December 2024 | €0.66 | +259.1% |
| 26 September 2026 (series high) | €3.46 | −31.5% |
Change in the Cardmarket trend, not actual sales; the history has gaps with no readings between some dates.
- 7-day change
- −19.6%
- Cardmarket trend
- 30-day change
- +61.9%
- Cardmarket trend
- Average sale
- €2.21
- Cardmarket sales
- Lowest listing
- €0.05
- Cardmarket listings
Price analytics · Normal
- Trend price
- €2.37
- Average sold price
- €2.21
- 1-day average
- €0.52
- 7-day average
- €1.22
- 30-day average
- €1.42
- Lowest listed
- €0.05
Reverse holo · Cardmarket
- Trend price
- €4.32
- Average sold price
- €3.77
- 7-day average
- €4.29
- 30-day average
- €4.27
- Lowest listed
- €1.45
US market · TCGplayer ($)
- Normal
- Low $0.86 · High $6.20$2.27
- Reverse holo
- Low $12.68 · High $379.82$34.84
Where to buy
Links open the sellers’ own sites. Pepita earns no commission from them.
Other prints
| Price | |
|---|---|
| reed-weichler · Normal | €0.99 |
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.
- Rarity
- Uncommon
- Illustrator
- Ken Sugimori
- Variants
- Normal, Reverse holo
