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See every ISIN a security has carried and the dates each one applied. An ISIN changes on a reverse split, a redomiciliation or a reorganization, and a system keyed on ISIN needs the full list to join today's holdings to yesterday's history.
One row is returned per ISIN span. Rows carry their real dates: from_date is the day the ISIN took effect even when that is before your requested window, and to_date is null while the ISIN still applies. Your window selects which rows are returned (any row that overlaps it), it does not re-date them. A change that has been announced but is not yet effective has a from_date in the future and is only returned when your to_date reaches it.
An ISIN belongs to the security, not to a listing, so every listing of the same security returns the same rows, and identifying the stock by security id (stock/sid/3001547/isin_history) is the direct way in. The from_date you pass still anchors which listing is resolved, exactly as on every other stock endpoint.
Available Data Points:
- From Date: The first date this ISIN applied (
YYYY-MM-DD). - To Date: The last date it applied, or null while it still does.
- ISIN: The International Securities Identification Number.
Try it out! You can test the API with the trial key TEST. Simply include it in your request headers; either here, or add the header "Ortex-Api-Key": "TEST" to your http request.
Trial key restrictions: Trial keys may be limited to a specific date range and set of regions. Requests outside the allowed regions or entirely outside the allowed date range are rejected; a date window that partially overlaps the allowed range is trimmed to it, reported in meta.restriction.
Get full access! Get a key at app.ortex.com/apis