Professor's Research
Market price
$129.88
Price history · RAW
2026-04-14 · $44.89
$176.98 · 2026-07-01
How is this value calculated?
Ladder estimate · English
· ~$1.04
gruen
| Evidence path | Sales | Age | Value vᵢ | Weight gᵢ |
|---|---|---|---|---|
| eigene rohe NM-Verkäufe | 4 | 2 mo | $1.04 | 32.65 |
value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = $1.04 · Σ g = 32.65
Measured error for this era×language (backtest): ±16 %
Ladder estimate · Deutsch
· ~$1.09
gruen
| Evidence path | Sales | Age | Value vᵢ | Weight gᵢ |
|---|---|---|---|---|
| en roh NM × 1.0407 (Sprach-Faktor aus 92 Karten) | 4 | 2 mo | $1.09 | 1.97 |
value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = $1.09 · Σ g = 1.97
Measured error for this era×language (backtest): ±19 %
Ladder estimate · Français
· ~$1.85
gelb
| Evidence path | Sales | Age | Value vᵢ | Weight gᵢ |
|---|---|---|---|---|
| en roh NM × 1.4803 (Sprach-Faktor aus 56 Karten) · Set +30% nachgeführt | 4 | 2 mo | $1.85 | 1.29 |
value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = $1.85 · Σ g = 1.29
Measured error for this era×language (backtest): ±25 %
Gate not green — shown only here, never as the price.
Ladder estimate · Italiano
· ~$1.01
gruen
| Evidence path | Sales | Age | Value vᵢ | Weight gᵢ |
|---|---|---|---|---|
| en roh NM × 0.9607 (Sprach-Faktor aus 39 Karten) | 4 | 2 mo | $1.01 | 2.38 |
value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = $1.01 · Σ g = 2.38
Measured error for this era×language (backtest): ±17 %
PSA Population
No PSA numbers for this print yet — in any language.
Recent sales · 3
| 2026-07-01 | DE | RAW UNKNOWN | Forschung des Professors Prof. Lind PRE 123/131 Pokémon Prof · eBay | $44.89 |
| 2026-06-01 | EN | RAW UNKNOWN | Pokémon TCG Professor's Research [Elm] 123/131 Professor Pro | $176.98 |
| 2026-04-14 | EN | RAW UNKNOWN | Professor's Research Elm 123/131 Pokemon Professor Program P | $176.00 |
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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 · 123/131