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PUBLIC HISTORICAL

Historical Options Data — Coverage & Supported Tickers

Live list of every ticker with historical coverage in the FlashAlpha dataset, with date ranges and data-quality counts. Pulled directly from GET /v1/tickers at render time. No authentication required.

Currently Covered Tickers

SymbolFirst dateLast dateHealthy daysTotal daysUpdated
SPY 2018-04-16 2026-04-02 1,972 2,909 —

(Coverage table fell back to last-known snapshot — live /v1/tickers was unreachable at render time.)

Want a symbol that's not listed? Email [email protected] with your ticker and target window. Backfills typically take <48h for liquid US equities/ETFs, longer for international or low-volume names.

Endpoint

GET /v1/tickers
Host: historical.flashalpha.com Auth: none Tier: any

Parameters

NameInRequiredDescription
symbolquerynoFilter to a single ticker (returns single object, not wrapped). 404 no_coverage if never backfilled.
 
curl https://historical.flashalpha.com/v1/tickers

Response Schema

{
  "count": 1,
  "tickers": [
    {
      "symbol": "SPY",
      "coverage": {
        "first": "2018-04-16",
        "last":  "2026-04-02",
        "total_days":   2909,
        "healthy_days": 1972
      },
      "tables": {
        "stocks_days":     2009,
        "options_days":    1972,
        "option_eod_days": 2006,
        "svi_days":        1972
      },
      "gaps": {
        "missing_eod":         3,
        "missing_svi":         36,
        "uncovered_calendar":  3
      },
      "updated_at": "2026-04-14T07:07:36"
    }
  ]
}
FieldMeaning
coverage.first / coverage.lastDate range of fully healthy days (intersection of stocks ∩ options ∩ option_eod ∩ svi_daily)
coverage.healthy_daysTrading days on which every downstream table has data
tables.*_daysPer-source day counts — debug signal when something is behind
gaps.missing_eodDays in stocks without option_eod (usually transient ThetaData misses; self-heal on next pipeline run)
gaps.missing_sviDays in option_eod without an SVI fit
gaps.uncovered_calendarNYSE trading days never pulled at all (genuine holidays — e.g. 2018-12-05 Bush funeral, 2025-01-09 Carter funeral)
updated_atUTC timestamp of the last pipeline quality-report run