Dataset
FreeDelisting Lifecycle
The event lifecycle of a stock's delisting — per row: market, code, company name, event type, announcement date, suspension date, delisting date, and reason summary; sourced from the TWSE / TPEx.
Download without registration: sample data using one of the five no-key symbols (2330 TSMC) as the example.
What this data is
Each row is one delisting-lifecycle event, carrying market / code / company_name / event_type / announcement_date / suspension_date / delisting_date / reason_summary (market, code, company name, event type, announcement date, suspension date, delisting date, and reason summary). Sourced from the TWSE / TPEx, graded reference / master. The backend /v2/datasets meta exposes only grade / tier / point-in-time and no coverage window, so none is stated here.
Use cases
- Build a full event timeline for delisted stocks.
- Correct survivorship bias in backtests via delisting_date.
- Classify delisting types (financial, merger) via reason summary.
Why it matters for stock analysis
Survivorship bias is a common backtest trap; this dataset serves the announcement/suspension/delisting timeline with reasons — the event layer needed to correct it.
Coverage / Freshness / Source Policy
The event lifecycle of a stock's delisting; one row per delisting-lifecycle event, fields market / code / company_name / event_type / announcement_date / suspension_date; sourced from the TWSE / TPEx (graded reference / master). (The backend /v2/datasets meta provides no coverage window, so none is stated.)
Updated as the backend refreshes; cadence follows the source's release schedule.
Sourced from the TWSE / TPEx (graded reference / master); not investment advice.
Developer entry points
- API docs: /docs/api/companies-events/stock-delisting-lifecycle
- OpenAPI: /openapi.json