Professor Oak's New Theory #101 Pokemon HeartGold & SoulSilver

Current Market Price
€0.21
(as of 22 Jun 2026, in Good condition)
DemandNumber of cards being soldVery Low
SupplyNumber of cards on the market right nowVery Low
LiquidityHow quickly you can expect to sell at the current market priceVery Low
Prices by Condition
estimated| Condition | Price |
|---|---|
| Near Mint | €0.54 |
| Excellent | €0.30 |
| Good | €0.21 |
| Light Played | €0.17 |
| Played | €0.13 |
| Poor | €0.09 |

€0.21
Good condition
DemandNumber of cards being soldVery Low
SupplyNumber of cards on the market right nowVery Low
LiquidityHow quickly you can expect to sell at the current market priceVery Low
Prices by Condition
estimated| Condition | Price |
|---|---|
| Near Mint | €0.54 |
| Excellent | €0.30 |
| Good | €0.21 |
| Light Played | €0.17 |
| Played | €0.13 |
| Poor | €0.09 |
No sales recorded in the last 90 days.
Market price overview for Professor Oak's New Theory #101 from HeartGold & SoulSilver
Current pricing
Professor Oak's New Theory — part of the HeartGold & SoulSilver set — currently fetches €0.21 for a Good condition copy. Collectors seeking Near Mint quality will pay closer to €0.54.
Price trend
The price has risen roughly 9% compared to the 30-day average, suggesting growing demand. Over the past week alone, the price moved up by 56%.
Price history (90 days)
The price corridor for Professor Oak's New Theory over the last quarter spans €0.04 to €0.34 — and the current price is in the middle ground.
Prices by condition
MT costs €1 versus €0.09 for PO. Budget-conscious buyers can save significantly by choosing the right condition.
Buy or sell?
The price trend is pointing upward, making this a relatively good time to sell Professor Oak's New Theory.

