Grookey SWSH Black Star Promos Market Report

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Grookey price and historyThe live card page: price, chart and graded ladder.All SWSH Black Star Promos pricesEvery card in the set, priced off the same tape.SWSH Black Star Promos set reportHow the whole set has moved and what leads it.Cards illustrated by kirisAkiEverything 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.

Other Grookey cards

What stands out

PSA population smaller than 96% of SWSH Black Star Promos.

Reference class: its set (SWSH Black Star Promos). 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

Context2

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.

Registry inflowContext

EFFECTIVELY CLOSED

New slabs a week against the recorded PSA population.

Printing rankContext

CHEAPEST PRINTING

This printing's raw price against every tracked printing of the Pokémon.

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 Grookey 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 13, 2026 and the refusal states its reason; members read why in full.
03
The registry
10 daily PSA population snapshots on file, 63 days of continuous history, drawn as a growth curve.
04
Market sentiment
This card reads as a promo finish; the desk ranks that class and the species against every other.

Grookey SWSH Black Star Promos Market Report