What stands out

PSA 10 copies trade less often than 84% of the JA era.

Reference class: JA era. 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.

Assay

Supportive1Caution1

Each stamp 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 the desk does not pick a side.

LiquidityCaution

THIN

Verified sales a week at PSA 10, from the daily graded tape.

Character demandSupportive

CHARACTER BID

The species demand index, a weighted percentile across every tracked species.

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 Butterfree dossier is sealed

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

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What this dossier is holding4 sealed sections

02
The call
The rating was refused on this card November 1, 2026 and the refusal states its reason; members read why in full.
03
Sales velocity
3 grades carry a measured weekly sale rate, each over its own 25 day window.
04
Market sentiment
This card reads as a non-holo finish; the desk ranks that class and the species against every other.
05
The comparables
6 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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2454 report editions stamped and 5448 dated calls on the clock, each with a falsifier written at stamp time and never edited. Counted November 2, 2026. How our calls scored

Explore

Butterfree price and historyThe live card page: price, chart and graded ladder.All DP4: Dawn Dash pricesEvery card in the set, priced off the same tape.DP4: Dawn Dash set reportHow the whole set has moved and what leads it.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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