Issuer profile

Overview

issuer-profile is a reference dataset: one active record per issuer, not a time series. Use it to resolve a ticker to the company's registered identity, industry and listing board. It is an active snapshot — the full point-in-time history of renames, industry re-classifications and capital changes is not yet integrated.

Coverage

Example response

A real response from this endpoint. Rows are returned under "envelope.data", and provenance is carried in the shape shown below — it is not identical across datasets, so read this page's rather than assuming another's.

{
  "api_version": "v2",
  "endpoint": "/v2/datasets/issuer-profile",
  "request_id": "req_468ebd389ccf",
  "plan_id": "enterprise",
  "dataset": "issuer_profile",
  "query": {
    "symbol": "1101",
    "market": null,
    "limit": 50
  },
  "meta": {
    "rows_returned": 1,
    "mandatory_contract_fields_present": [
      "api_version",
      "data",
      "data_as_of"
    ],
    "plan": "enterprise",
    "row_limit": 100000,
    "is_limited": false
  },
  "envelope": {
    "api_version": "v2",
    "dataset": "issuer_profile",
    "dataset_version": "v2.0.0-preview",
    "release_version": "v2.2026-08-03.preview",
    "release_date": "2026-08-03",
    "data_as_of": "2026-08-03",
    "request_context": {
      "ticker": "1101",
      "as_of_date": "2026-08-03",
      "family": "discovery_reference",
      "field_group_type": "canonical",
      "dataset_view": "issuer_profile_v1"
    },
    "data": [
      {
        "symbol": "1101",
        "company_name": "<Chinese value - see the zh page>",
        "market": "TWSE",
        "industry": "01",
        "isin": null,
        "listing_date": null,
        "chairperson": null,
        "general_manager": null,
        "capital": null,
        "address": null,
        "website": null,
        "source_name": "official_twse_openapi_t187ap03_l",
        "source_url": null,
        "announcement_type": null,
        "source_as_of": "2026-08-03",
        "updated_at": "2026-08-04T12:33:38.969690"
      }
    ],
    "quality": {
      "freshness_state": "fresh",
      "freshness_as_of": "2026-08-03",
      "completeness_ratio": 1,
      "quality_status": "ready"
    },
    "lineage": {
      "source_role": "canonical",
      "selected_source": "issuer_profile",
      "fallback_chain": [],
      "policy_notes": [
        "official/public-first canonical",
        "issuer profile mapped from canonical issuer_profiles table",
        "nullable profile fields are preserved as-is"
      ]
    },
    "error": {
      "error_code": null,
      "error_message": null,
      "dataset": "issuer_profile",
      "request_id": "read-api-bcc60aec32d9",
      "blocking_gate": null
    }
  }
}

Captured from the live API on 2026-07-20.

Chinese data values are shown as a marker here so this page stays in English; the /zh page shows them verbatim.

Provenance

These columns are returned alongside the data and record where the row came from. They are provenance, not the dataset's subject matter, so they are listed here rather than in the field table.

Licence and attribution

Part of the data in this service is obtained from the Government Open Data Platform (data.gov.tw) and used under the Open Government Data License, version 1.0. Providing agencies: Taiwan Stock Exchange, Taipei Exchange, Taiwan Futures Exchange, Taiwan Depository & Clearing Corporation, National Development Council, Central Bank of the Republic of China (Taiwan), Department of Statistics of the Ministry of Economic Affairs, and Customs Administration of the Ministry of Finance. The value-added processing, derived calculations and presentation in this service are the responsibility of TWMD and are not associated with the providing agencies.

TW Market Data. (n.d.). Issuer profile [Data set]. TW Market Data. Retrieved 2026-09-05, from https://twmarketdata.com/en/docs/api/structure-reference/issuer-profile

The version is the dataset's own as_of, not the date this page was built. Where we have no as_of the field is left out rather than filled in. Check a signature

Related datasets

Datasets that join with this one. The key each pair aligns on is shown, so you can plan a multi-table query without guessing.

• Issuer classification

  Joins on market + ticker

• Company industry exposures

  Joins on market + ticker

• Company peer groups

  Joins on market + ticker

• Industry Value-Chain Membership

  Joins on market + ticker

• Attention & disposition events

  Joins on market + ticker

Getting started

1. Put your key in the X-API-Key header.
2. Add query parameters (symbol, date range, limit).
3. Send the request and read the envelope.data array.

curl "https://api.twmarketdata.com/v2/datasets/issuer-profile?symbol=1101" \
  -H "X-API-Key: sk_live_..."

Filtering

Python

import requests

resp = requests.get(
    "https://api.twmarketdata.com/v2/datasets/issuer-profile",
    params={"symbol": "1101"},
    headers={"X-API-Key": "sk_live_..."},
)
resp.raise_for_status()
print(resp.json()["envelope"]["data"])

OpenAPI

This endpoint is GET /v2/datasets/issuer-profile. The full machine-readable schema (parameters, security, response envelope) lives in the OpenAPI spec.

Notes & limitations

• Active snapshot / lookup only — not a survivorship-safe time series; it does not reconstruct a company's profile as it stood at a past date.