Professor Oak's New Theory
Illustrated by Ken Sugimori · HeartGold & SoulSilver series
Raw Market Value
$3.36
range $1.29 – $42.00
via TCGPlayer
Top graded value
$72.00
PSA 10
from real sold listings
20 recent sales tracked (180d).
Price History
Daily average sale price from eBay sold listings.
180d change
-$0.54 (-27.1%)
7D30D90D180D
Graded Prices
Verified prices across 2 grading services.
PSA
| Grade | Type | Low | Mid | High | Market |
|---|---|---|---|---|---|
| PSA 10 | normal | $50.00 | $50.00 | $50.00 | $50.00 |
| PSA 10 | reverseHolofoil | $72.00 | $72.00 | $72.00 | $72.00 |
| PSA 9 | reverseHolofoil | $10.00 | $26.00 | $50.00 | $13.68 |
| PSA 8 | reverseHolofoil | $10.00 | $10.00 | $10.00 | $10.00 |
| PSA 6 | reverseHolofoil | $14.00 | $14.00 | $14.00 | $14.00 |
CGC
| Grade | Type | Low | Mid | High | Market |
|---|---|---|---|---|---|
| CGC 9.5 | reverseHolofoil | $12.00 | $12.00 | $12.00 | $12.00 |
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Recent Sales onebay
Real sold listings, most recent first.
- May 22, 2026$1.45
- May 19, 2026$1.49
- May 5, 2026$2.86
- Apr 30, 2026$3.00
- Apr 25, 2026$1.85
- Apr 17, 2026$1.99
- Apr 6, 2026$5.00
- Apr 4, 2026$0.99
- Mar 17, 2026$3.00
- Mar 17, 2026$0.99
- Mar 9, 2026$0.99
- Mar 7, 2026$1.50
- Mar 5, 2026$0.48
- Feb 28, 2026$2.99
- Feb 26, 2026$0.99
Final sold amounts in USD. Outbound links open the original eBay listing.
Other Professor Oak's New Theory prints
Different printings across sets.
