Research series / MTG300-XMR

A parallel record.
Not an official close.

MTG300-XMR is a retrospective reconstruction designed for analysis beside the MTG 300. It is not a source of official, reliable card prices, and it must not be mistaken for the parent index’s published history. The policy’s all-printing exclusion is shown in the exclusion scope below.

Parent seriesMTG 300 · MTG300 Index inception is historical, not proof of contemporaneous prices.

Coverage at a glance

Measured, not inferred

Parent dates

Observed in the parent series

Reconstructed dates

Retrospective calculations

Frozen dates

Held / frozen observations

Source last date

Last date available to this report

Common-date comparison

Levels and change since prior displayed observation

Only dates present in the reported rows can be compared. Returns are changes since the preceding displayed common-date observation—not daily returns. The span column makes the calendar gap explicit. The reconstruction remains retrospective even where a date matches the parent.

Reconstruction Parent

Date	Reconstructed level	Parent level	Recon. change*	Parent change*	Span	Count	Quality
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* Change since the preceding displayed common-date observation; not a daily return unless the span is one calendar day.

Adoption & validation

Policy record

Policy version: —
Adopted at: —
Decision: —
Exclusion scope: All-printing exclusion; policy detail pending report.
Independent validation: —
Verification scope: Not reported. A numerical check does not establish historical price accuracy.
Input SHA-256: —

Interpretation

Read before use

Retrospective means retrospective

The adoption date, if available, is not the index inception date. Historical reconstruction does not establish historical executable or reliable prices. MTG300-XMR is analytics-only; no futures or other tradable product is implied. The original incident remains unresolved.

Inception: —
Publication state: —
Runtime mirror: —
Independent max difference: —

Warnings & limitations

Known constraints

Warnings

No warnings reported.

Limitations

No limitations reported.

Regime & constituents

Reported composition

No regime data reported.

Current retained holdings

Instrument	Instrument key	Scryfall ID	Target weight
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Instrument contributions

Instrument	Contribution
No contributions reported.