moonstone Assay OfficeCard Market Report
Brock
Report no.MSR-JAT-614743
Dated2026-09-18
Raw market$31.20
Our call on this cardmoonstone Pro
Sealed
stamped 2026-09-18
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.
Raw price higher than 96% of its price band ($16 to $32).
Reference class: its price band ($16 to $32). Percentiles are recomputed nightly from recorded data across every tracked card. Nothing modeled.
01The verdict block
STEADY INFLOW
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HEAVY FLOAT
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EV MARGINAL
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Every verdict is a disclosed formula over recorded data. Nothing here is an opinion or a model.
moonstone Pro
The full Brock 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. The complete card report includes:
- The stamped BUY / HOLD / SELL call and 180-day target, formula printed in full
- Verified sold medians for every tracked grade, with sample sizes
- Weekly sales velocity from the daily graded tape
- The registry growth curve and gem-rate drift
- Grading EV with the full break-even ledger
- The numbers behind every verdict stamp
Pro also includes 300 Cynthia questions a day and binder-page scanning. Browse all reports
The full dossier covers 3 verified grade medians, the registry growth curve, sales velocity, and grading EV for Brock · City Gym Decks #.