What stands out

PSA population larger than 95% of its price band ($0.50 to $1).

Reference class: its price band ($0.50 to $1). Percentiles are recomputed nightly, by disclosed rule, from recorded data across every tracked card.

01The verdict block2 readings

What the fixed formulas say about the figures below, with the arithmetic shown.

Our reading

Context2

Each verdict is one fixed formula applied identically to every card. Supportive and caution mark a reading that cuts the same way for anyone holding the card. Context marks a fact that is good news to a buyer and bad news to a holder, so we do not pick a side.

New PSA copiesContext

Almost no new PSA copies

New PSA-graded copies a week, against the number PSA has graded so far.

Copies for saleContext

Many copies for sale

Raw copies listed for sale on TCGplayer, as a share of the number PSA has graded.

Every verdict is a disclosed formula over recorded data, applied with the same fixed thresholds to every card. No discretionary price forecasting is used, and the arithmetic is printed so it can be reproduced.

moonstone Pro

The full Golduck dossier is sealed

Pro opens our call: a buy, hold, or sell and a fair value on every rated card, each a disclosed formula over recorded data. Below is every section this report is holding back.

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What this dossier is holding6 sealed sections

02
The call
The rating was refused on this card November 14, 2026 and the refusal states its reason; members read why in full.
03
Recorded sales · verified sold medians
1 grades carry a verified sold median on this card, each with its sample size. Sales through October 6, 2026.
04
The registry
10 daily PSA population snapshots on file, 63 days of continuous history, drawn as a growth curve.
05
Sales per week
2 grades carry a measured weekly sale rate, each over its own 28 day window.
06
Market sentiment
This card has a promo finish; we rank how that finish and this Pokémon are doing against every other.
07
The comparables
5 comparable cards across 2 reference sets, every row linked to its own dossier.

See a full report, freeMew exPaldean Fates · open to everyone, nothing sealed

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Pro also includes 300 Cynthia questions a day and binder-page scanning. Browse all reports

3226 report editions made and 7282 dated calls still open, each with what would prove it wrong written down at the time and never edited. Counted November 14, 2026. How our calls scored

Explore

Golduck price and historyThe live card page: price, chart and graded ladder.All MEP Black Star Promos pricesEvery card in the set, priced from the same records.MEP Black Star Promos set reportHow the whole set has moved and what leads it.Cards illustrated by Jiro SasumoEverything this illustrator has drawn, with prices.This week's biggest moversThe widest recorded moves across the catalog.All market reportsEvery card and set we publish a dossier on.How our calls scoredThe public ledger of every call, win or lose.Every Pokémon setThe full set index, oldest to newest.

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