Professor's Research
Market price
$71.16
Price history · RAW
2026-06-01 · $44.89
$176.24 · 2026-07-01
How is this value calculated?
Ladder estimate · English
· ~$0.98
gruen
| Evidence path | Sales | Age | Value vᵢ | Weight gᵢ |
|---|---|---|---|---|
| eigene rohe NM-Verkäufe | 5 | 4 mo | $0.98 | 40.82 |
value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = $0.98 · Σ g = 40.82
Measured error for this era×language (backtest): ±16 %
Ladder estimate · Deutsch
· ~$1.01
gruen
| Evidence path | Sales | Age | Value vᵢ | Weight gᵢ |
|---|---|---|---|---|
| en roh NM × 1.0296 (Sprach-Faktor aus 92 Karten) | 5 | 4 mo | $1.01 | 2.04 |
value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = $1.01 · Σ g = 2.04
Measured error for this era×language (backtest): ±19 %
Ladder estimate · Français
· ~$1.72
gelb
| Evidence path | Sales | Age | Value vᵢ | Weight gᵢ |
|---|---|---|---|---|
| en roh NM × 1.4672 (Sprach-Faktor aus 56 Karten) · Set +30% nachgeführt | 5 | 4 mo | $1.72 | 1.28 |
value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = $1.72 · Σ g = 1.28
Measured error for this era×language (backtest): ±25 %
Gate not green — shown only here, never as the price.
Ladder estimate · Italiano
· ~$0.94
gruen
| Evidence path | Sales | Age | Value vᵢ | Weight gᵢ |
|---|---|---|---|---|
| en roh NM × 0.9607 (Sprach-Faktor aus 39 Karten) | 5 | 4 mo | $0.94 | 2.5 |
value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = $0.94 · Σ g = 2.5
Measured error for this era×language (backtest): ±17 %
PSA Population
No PSA numbers for this print yet — in any language.
Recent sales · 2
| 2026-07-01 | DE | RAW UNKNOWN | Forschung des Professors Prof Platan PRE 125/131 Pokémon Pro | $44.89 |
| 2026-06-01 | EN | RAW UNKNOWN | Pokémon TCG Professor's Research [Sycamore] 125/131 Professo | $176.24 |
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Frequently asked questions
How does lastsold determine the market value?
lastsold uses only real sales — eBay plus auction houses like Goldin & Fanatics — recent sales count more (recency weighting), outliers and fakes are removed. It's not an estimate but actual sold prices, separated by condition, language and grading.
Professor's Research Prismatic Evolutions · 125/131