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

Magikarp XY Black Star Promos Market Report

What stands out

PSA population larger than 97% of the XY era.

Reference class: XY era. Percentiles are recomputed nightly, by disclosed rule, from recorded data across every tracked card.

01The verdict block6 readings

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

Assay

Supportive2Caution1Context2Neutral1

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.

LiquidityNeutral

TRADEABLE

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

Registry inflowContext

STEADY INFLOW

New slabs a week against the recorded PSA population.

Market floatContext

NORMAL LISTED FLOAT

Active raw listings divided by the PSA population.

Gem-rate driftSupportive

GEMMING HARDER

The recent gem share against the rate at the window start.

Grading EVCaution

EV NEGATIVE

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 Magikarp 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 holding7 sealed sections

02
The call
The rating was refused on this card 2026-10-28 and the refusal states its reason; members read why in full.
03
The tape · verified sold medians
5 grades carry a verified sold median on this card, each with its sample size. Comps through 2026-10-27.
04
The registry
9 daily PSA population snapshots on file, 51 days of continuous history, drawn as a growth curve.