ULTRARARE
Professor Oak's New Theory #101
HeartGold & SoulSilver · Pokémon
Market price · Near Mint
$6.99
▲ 0.4% this month · Updated daily from recent sales
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$20.35
$20.60
$21.02Professor Oak's New Theory price history (Reverse Holo)
▲ $0.07 (1.0%) since May 14, 2026
- Oct 25, 2026
- $6.99
- 1 month ago
- $6.96
- 3 months ago
- $6.92
- Since May 14, 2026
- $6.92
- Low – high
- $6.92 – $6.99
Raw prices by condition
| Condition | Market | Range |
|---|---|---|
| Near Mint | $6.99 | Few recent sales |
| Lightly Played | $5.51 | $4.49 – $6.99 |
| Moderately Played | $3.41 | $2.20 – $4.99 |
| Heavily Played | $2.55 | $1.75 – $4.00 |
| Damaged | $1.00 | Few recent sales |
Graded prices
| Grade | CGC |
|---|---|
| 9 | $49.99 |
| 8.5 | $24.00 |
How much is Professor Oak's New Theory #101 HeartGold & SoulSilver worth?
A Near Mint Professor Oak's New Theory (HeartGold & SoulSilver #101) sells for about $6.99. Played copies sell for less, and graded copies in high grades sell for more. Prices are market prices from recent sales and update every day. The Near Mint price is up 0.4% over the last 30 days, up 1.0% over 90 days, up 1.0% over 6 months.
