Professor Oak's Research
Illustrated by Ken Sugimori · EX series
Raw Market Value
$4.42
range $2.55 – $57.90
via TCGPlayer
Top graded value
$1,725
PSA 8
from real sold listings
20 recent sales tracked (180d).
Price History
Daily average sale price from eBay sold listings.
180d change
+$190.74 (+2062.1%)
7D30D90D180D
Graded Prices
Verified prices across 2 grading services.
PSA
| Grade | Type | Low | Mid | High | Market |
|---|---|---|---|---|---|
| PSA 10 | reverseHolofoil | $70.00 | $75.00 | $256.00 | $197.43 |
| PSA 9 | reverseHolofoil | $28.00 | $30.74 | $40.00 | $30.23 |
| PSA 8 | normal | $1,725 | $1,725 | $1,725 | $1,725 |
| PSA 8 | reverseHolofoil | $10.50 | $12.50 | $20.50 | $20.38 |
| PSA 5 | normal | $10.00 | $10.00 | $10.00 | $10.00 |
CGC
| Grade | Type | Low | Mid | High | Market |
|---|---|---|---|---|---|
| CGC 10 | normal | $199.99 | $199.99 | $199.99 | $199.99 |
| CGC 10 | reverseHolofoil | $30.00 | $30.00 | $30.00 | $30.00 |
| CGC 9.5 | reverseHolofoil | $40.00 | $40.00 | $40.00 | $40.00 |
| CGC 9 | reverseHolofoil | $11.00 | $12.50 | $12.50 | $12.49 |
| CGC 6.5 | reverseHolofoil | $6.00 | $6.00 | $6.00 | $6.00 |
Scan any card with your phone.
Point, identify, see real prices in seconds. Free download.
Recent Sales onebay
Real sold listings, most recent first.
- May 11, 2026$199.99
- May 8, 2026$0.99
- May 3, 2026$5.99
- May 3, 2026$3.00
- Apr 26, 2026$12.50
- Apr 26, 2026$5.23
- Apr 25, 2026$24.99
- Apr 25, 2026$3.99
- Apr 21, 2026$20.50
- Apr 16, 2026$10.14
- Apr 13, 2026$4.04
- Apr 5, 2026$5.00
- Apr 2, 2026$5.99
- Apr 2, 2026$4.75
- Mar 21, 2026$6.00
- Mar 15, 2026$12.51
- Mar 13, 2026$7.26
- Mar 1, 2026$2.06
Final sold amounts in USD. Outbound links open the original eBay listing.
Other Professor Oak's Research prints
Different printings across sets.
