QUESTION
Market Participation and State Concentration
POPULATION
US Securities
OBSERVATION UNIT
market-minute
PERIOD
2026-01-02 — 2026-09-18
MEASUREMENT
Relationship between lawful participation coverage and aggregate state concentration.
DENOMINATOR / N
NON-PUBLIC-TEST
RESULT
Fixture release architecture only; no scientific number is asserted.
VALIDATION CLASS
HISTORICAL_DESCRIPTIVE
LIMITATIONS
Offline architecture fixture; publishable results require sealed source-bound evidence.
SOURCE AUTHORITY
SeedStream Science fixture authority R1
PUBLICATION STATE
SEALED
PUBLISHED AT
2026-09-18