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Research citing this card

Are Pokemon Black Star Promos Worth Anything?Quant research · 11 min read

Our call on this cardmoonstone Pro

Our stamped call, its 180-day target, and every term that produced them.

Assay

Sealed

stamped 2026-09-28

The call · buy, hold, or sell

180-day target price

Upside or downside to target

A live call and target are stamped on this card today, each a disclosed formula over recorded data with the arithmetic printed in full. The stamp above is real; only the ink is behind the rope.

What stands out

PSA 10 copies trade more often than 96% of its price band ($2 to $4).

Reference class: its price band ($2 to $4). 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

Context1Neutral1

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

EFFECTIVELY CLOSED

New slabs a week against the recorded PSA population.

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 Sobble dossier is sealed

Pro breaks the seal on our call: a stamped buy, hold, or sell and a 180-day target price on every rated card, each a disclosed formula over recorded data. Below is every section this dossier is holding back.

What this dossier is holding6 sealed sections

02
The call
A buy, hold or sell and a 180 day target, stamped 2026-09-28, with the composite arithmetic printed in full.
03
The tape · verified sold medians
7 grades carry a verified sold median on this card, each with its sample size. Comps through 2026-09-25.
04
The registry
4 daily PSA population snapshots on file, 21 days of continuous history, drawn as a growth curve.
05
Sales velocity

Sobble MEP Black Star Promos Market Report