Treasure Tracker

Prismatic Evolutions · 131/131 ·ACE SPEC Rare

Illustration: inose yukie → All Poké Ball cards →

Poké Ball £0.56 4 sales Holo £1.58 177 sales

Market price

£1.58

How is this value calculated?

Ladder estimate · English · ~£1.58 gruen

Evidence path	Sales	Age	Value vᵢ	Weight gᵢ
eigene rohe NM-Verkäufe	80	57 d	£1.59	653.06
eigene LP-Verkäufe ÷ 0.8781	4	2 mo	£1.52	6.83
de roh NM × 0.9716 (Sprach-Faktor aus 92 Karten)	8	59 d	£1.23	2.85
fr roh NM × 0.682 (Sprach-Faktor aus 56 Karten)	3	55 d	£1.68	1.66

value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = £1.58 · Σ g = 664.4

Measured error for this era×language (backtest): ±16 %

Ladder estimate · Deutsch · ~£1.28 gruen

Evidence path	Sales	Age	Value vᵢ	Weight gᵢ
eigene rohe NM-Verkäufe	8	59 d	£1.27	65.31
en roh NM × 1.0296 (Sprach-Faktor aus 92 Karten)	80	57 d	£1.63	2.14
fr roh NM × 0.7082 (Sprach-Faktor aus 52 Karten)	3	55 d	£1.74	0.87

value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = £1.28 · Σ g = 68.32

Measured error for this era×language (backtest): ±19 %

Ladder estimate · Français · ~£2.89 gelb

Evidence path	Sales	Age	Value vᵢ	Weight gᵢ
eigene rohe NM-Verkäufe · Set +30% nachgeführt	3	55 d	£2.93	24.49
en roh NM × 1.4672 (Sprach-Faktor aus 56 Karten) · Set +30% nachgeführt	80	57 d	£2.77	1.32
de roh NM × 1.4121 (Sprach-Faktor aus 52 Karten) · Set +30% nachgeführt	8	59 d	£2.13	1.06

value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = £2.89 · Σ g = 26.87

Measured error for this era×language (backtest): ±25 %

Gate not green — shown only here, never as the price.

Ladder estimate · Italiano · ~£1.34 gruen

Evidence path	Sales	Age	Value vᵢ	Weight gᵢ
en roh NM × 0.9607 (Sprach-Faktor aus 39 Karten)	80	57 d	£1.52	2.65
de roh NM × 0.8504 (Sprach-Faktor aus 35 Karten)	8	59 d	£1.08	2.3
fr roh NM × 0.6097 (Sprach-Faktor aus 24 Karten)	3	55 d	£1.51	1.61

value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = £1.34 · Σ g = 6.56

Measured error for this era×language (backtest): ±17 %

PSA Population

No PSA numbers for this print yet — in any language.

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.