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Data health

Source dates, field coverage and completed checks.

Operational verification pending

Research watchlist

Alpaca SIP · Raw and split series kept separately

CompanyStock sessionRaw / split sessionsQuote dateOI dateQuality evidenceLatest collection

Checks cover observed history. “Checked” does not certify complete company history or synchronized options fields. OI means open interest.

Collection & verification

Options field coverage

Missing fields in the latest capture. Missing is never replaced by zero.

StockContractsGamma missingIV missingOI missing

Indicative quotes are modified. Greeks have no independent calculation timestamp. Contract eligibility reflects retrieval time.