European Central Bank — Securities exchange - Trading Statistics (SEE)
The Securities Exchange - Trading Statistics (SEE) dataset is published by the European Central Bank as part of its official statistical data warehouse, the ECB Data Portal. It provides time series data on securities exchange trading activity across the euro area, delivered through the SDMX 2.1 REST API under the SEE dataflow. Data can be retrieved in XML (SDMX-ML), CSV, or JSON formats via a single endpoint, with support for key-based series selection and time filters such as startPeriod, endPeriod, and lastNObservations. The same series can also be browsed and visualized interactively on the ECB Data Portal website.Securities exchange - Trading Statistics (SEE) — official time series from the European Central Bank Data Portal, published as the SEE dataflow over SDMX 2.1 REST. One endpoint serves XML (SDMX-ML), CSV (?format=csvdata) and JSON (?format=jsondata); extract exactly the series you need with a key path and startPeriod / endPeriod / lastNObservations filters. Browse and chart the same series on the ECB Data Portal.
Trust score
How is this computed?Weighted across five axes. Tap a ring for what it measures.
Data schema (25 fields)
Click a field to see example values.
| Field | Type | Description |
|---|---|---|
| FREQFrequency | dimension | Frequency of the observation, e.g. annual.1 codes (e.g. Annual) |
| REF_AREAReference area | dimension | Country or reference area code for the series.22 codes (e.g. Austria, Belgium, Bulgaria) |
| SEE_SYSTEMSystem in securities exchange (trading) context | dimension | Code identifying the securities exchange trading system.33 codes (e.g. CEESEG - Vienna, Euronext Brussel S.A., Fonds des rentes) |
| SSS_INFO_TYPEInformation type in securities settlement, clearing, trading context | dimension | Type of information reported for securities settlement/trading.22 codes (e.g. Total participants - central bank, Total participants - central counterparty (CCP), Total participants - credit institution) |
| SSS_INSTRUMENTInstrument in securities settlement, clearing and trading context | dimension | Financial instrument category covered by the observation.7 codes (e.g. Not applicable, Equity, Equity, of which investment fund shares) |
| SERIES_DENOMSeries denominat/spec calcul | dimension | Denomination of the series, e.g. quantity or currency.3 codes (e.g. Quantity, Euro, National currency) |
| TIME_PERIODTime period or range | time | Time period of the observation; filterable via query params.Time dimension — filter with startPeriod / endPeriod query params. |
| OBS_VALUEObservation value | number | Numeric value observed for the given series and period.The observed numeric value for each cell. |
| TIME_FORMATTime format code | attribute | Code indicating the format used for the time period.Code indicating the format used for the time period. |
| COLLECTIONCollection indicator | attribute | Indicator of how the observation was collected or aggregated.Indicator of how the observation was collected or aggregated. |
| COMPILING_ORGCompiling organisation | attribute | Organisation that compiled the data.Organisation that compiled the data. |
| DISS_ORGData dissemination organisation | attribute | Organisation responsible for disseminating the data.Organisation responsible for disseminating the data. |
| PUBL_ECBSource publication (ECB only) | attribute | Publication reference where ECB published the data.Publication reference where ECB published the data. |
| PUBL_MUSource publication (Euro area only) | attribute | Publication reference where euro area data was published.Publication reference where euro area data was published. |
| PUBL_PUBLICSource publication (public) | attribute | Publicly available source publication reference.Publicly available source publication reference. |
| DECIMALS | attribute | Number of decimal places in the observation value.Number of decimal places in the observation value. |
| SOURCE_AGENCY | attribute | Agency that originally sourced the data.Agency that originally sourced the data. |
| TITLE | attribute | Short title describing the series.Short title describing the series. |
| TITLE_COMPLTitle complement | attribute | Additional descriptive text complementing the series title.Additional descriptive text complementing the series title. |
| UNIT | attribute | Unit of measurement for the observation value.Unit of measurement for the observation value. |
| UNIT_MULTUnit multiplier | attribute | Power-of-ten multiplier applied to the observation value.Power-of-ten multiplier applied to the observation value. |
| OBS_STATUSObservation status | attribute | Status code indicating quality or nature of the observation.Status code indicating quality or nature of the observation. |
| OBS_CONFObservation confidentiality | attribute | Confidentiality classification of the observation.Confidentiality classification of the observation. |
| OBS_PRE_BREAKPre-break observation value | attribute | Observation value prior to a data series break.Observation value prior to a data series break. |
| OBS_COMObservation comment | attribute | Free-text comment attached to the observation.Free-text comment attached to the observation. |
Schema captured from sdmx 2 days ago.
Query the data
Pick columns and a sort, then fetch a live preview straight from the source. Choose an API-filterable column (marked ▾) under “Where” to pick from its list of values.
Sample data (5 records)
Record 1FREQ: A · OBS_COM: —
{
"FREQ": "A",
"OBS_COM": null,
"OBS_CONF": null,
"REF_AREA": "AT",
"OBS_VALUE": null,
"OBS_STATUS": "M",
"SEE_SYSTEM": "WBR0",
"TIME_PERIOD": "2008",
"SERIES_DENOM": "Q",
"OBS_PRE_BREAK": null,
"SSS_INFO_TYPE": "D00",
"SSS_INSTRUMENT": "Z"
}Record 2FREQ: A · OBS_COM: —
{
"FREQ": "A",
"OBS_COM": null,
"OBS_CONF": null,
"REF_AREA": "AT",
"OBS_VALUE": null,
"OBS_STATUS": "M",
"SEE_SYSTEM": "WBR0",
"TIME_PERIOD": "2008",
"SERIES_DENOM": "Q",
"OBS_PRE_BREAK": null,
"SSS_INFO_TYPE": "D01",
"SSS_INSTRUMENT": "Z"
}Record 3FREQ: A · OBS_COM: —
{
"FREQ": "A",
"OBS_COM": null,
"OBS_CONF": null,
"REF_AREA": "AT",
"OBS_VALUE": null,
"OBS_STATUS": "M",
"SEE_SYSTEM": "WBR0",
"TIME_PERIOD": "2008",
"SERIES_DENOM": "Q",
"OBS_PRE_BREAK": null,
"SSS_INFO_TYPE": "D03",
"SSS_INSTRUMENT": "Z"
}Record 4FREQ: A · OBS_COM: —
{
"FREQ": "A",
"OBS_COM": null,
"OBS_CONF": null,
"REF_AREA": "AT",
"OBS_VALUE": null,
"OBS_STATUS": "M",
"SEE_SYSTEM": "WBR0",
"TIME_PERIOD": "2008",
"SERIES_DENOM": "Q",
"OBS_PRE_BREAK": null,
"SSS_INFO_TYPE": "D04",
"SSS_INSTRUMENT": "Z"
}Record 5FREQ: A · OBS_COM: —
{
"FREQ": "A",
"OBS_COM": null,
"OBS_CONF": "F",
"REF_AREA": "AT",
"OBS_VALUE": 80,
"OBS_STATUS": "A",
"SEE_SYSTEM": "WBR0",
"TIME_PERIOD": "2018",
"SERIES_DENOM": "Q",
"OBS_PRE_BREAK": null,
"SSS_INFO_TYPE": "D0T",
"SSS_INSTRUMENT": "Z"
}Live sample captured at profiling time — values may have changed upstream.
Verification Status
Using the API
Query examples
curl -s 'https://data-api.ecb.europa.eu/service/dataflow/ECB' -H 'Accept: application/vnd.sdmx.structure+xml;version=2.1'All dataflows (datasets) published by this agency, as SDMX-ML.
Machine-readable & source
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