Building an AI agent? Start with /llms.txt for the full site index.

Capital Flows

Day-trading suspension

Name: Day-trading suspension
Creator: TW Market Data
License: https://twmarketdata.com/en/legal/licensing

Stocks suspended from same-day (cash) day trading, sourced from the official TWSE announcement — suspension window and reason.

← Day-trading suspension overview

ReferenceSource: TWSE·Plan: pro·Cost: 2 credits·GET /v2/datasets/day-trading-suspension

Day-trading suspension is a Taiwan market dataset sourced from TWSE, served by TW Market Data as GET /v2/datasets/day-trading-suspension.

Overview

day-trading-suspension returns one row per stock per suspension event from the official TWSE day-trading suspension announcement, with the suspension window and reason. Each row carries its source role so an entry is traceable to the official notice. This endpoint is a preview surface — coverage is currently partial and served as a snapshot rather than a fully backfilled history.

Field	Type	Description
`ticker`	string
`market`	string
`security_name`	string
`suspension_start_date`	string
`suspension_end_date`	string
`event_indicator`	string
`event_name`	string

Coverage

Rows	~316
Window	2026-06-03 – 2026-09-04
Grade	Reference
Measured	2026-09-04from the dataset registry

Example response

A real response from this endpoint. Rows are returned under "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",
  "dataset": "day_trading_suspension",
  "dataset_version": "v2.0.0-preview",
  "release_version": "v2.2026-07-23.preview",
  "release_date": "2026-07-23",
  "data_as_of": "2026-07-23",
  "request_context": {
    "ticker": "2528",
    "as_of_date": "2026-07-23",
    "family": "market_structure_corporate_actions",
    "field_group_type": "canonical",
    "dataset_view": "day_trading_suspension_v1",
    "scope": "day_trading_suspension_twse_current_snapshot_only",
    "coverage_type": "twse_current_snapshot_reference",
    "snapshot_mode": "current_snapshot_only",
    "supported_filter_fields": [
      "market",
      "ticker",
      "date_from"
    ],
    "market_filter": "TWSE",
    "ticker_filter": "2528",
    "date_range": {
      "date_from": null,
      "date_to": null
    }
  },
  "data": [
    {
      "ticker": "2528",
      "market": "TWSE",
      "security_name": "<Chinese value - see the zh page>",
      "suspension_start_date": "2026-07-23",
      "suspension_end_date": "2026-07-29",
      "event_indicator": "<Chinese value - see the zh page>",
      "event_name": "TWSE current day-trading suspension",
      "source_family": "twse_current_day_trading_suspension",
      "lineage": {
        "endpoint": "https://www.twse.com.tw/exchangeReport/TWTBAU2",
        "source_url": "https://www.twse.com.tw/exchangeReport/TWTBAU2?response=json&date=20260729",
        "source_role": "official_current_list",
        "source_title": "<Chinese value - see the zh page>",
        "source_family": "twse_current_day_trading_suspension",
        "request_params": {
          "date": "20260729",
          "response": "json"
        },
        "source_provider": "twse_openapi"
      },
      "data_gaps": [],
      "not_investment_advice": true
    }
  ],
  "quality": {
    "freshness_state": "fresh",
    "freshness_as_of": "2026-07-23",
    "completeness_ratio": 1,
    "quality_status": "ready",
    "ticker_count": 1
  },
  "lineage": {
    "source_role": "canonical",
    "selected_source": "day_trading_suspension",
    "fallback_chain": [],
    "policy_notes": [
      "official/public-first canonical",
      "TWSE current snapshot only",
      "no historical completeness claim"
    ],
    "source_families": [
      "twse_current_day_trading_suspension"
    ]
  },
  "error": {
    "error_code": null,
    "error_message": null,
    "dataset": "day_trading_suspension",
    "request_id": "read-api-20260723",
    "blocking_gate": null
  },
  "dataset_id": "day_trading_suspension",
  "data_count": 1,
  "known_gaps": [
    "twse_only_scope",
    "no_tpex_coverage",
    "no_historical_completeness"
  ],
  "warnings": [
    "not_investment_advice",
    "twse_only_scope"
  ],
  "not_investment_advice": true
}

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.

source_familylineagedata_gapsnot_investment_advice

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.

Cite this dataset

TW Market Data. (n.d.). Day-trading suspension [Data set]. TW Market Data. Retrieved 2026-09-05, from https://twmarketdata.com/en/docs/api/capital-flows/day-trading-suspension

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

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

Foreign holding
Joins on market + ticker
Institutional flow
Joins on market + ticker
Securities-Lending Utilization
Joins on market + ticker
Margin & short
Joins on market + ticker
Margin short cover date
Joins on market + ticker

Getting started

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

curl "https://api.twmarketdata.com/v2/datasets/day-trading-suspension?ticker=2528" \
  -H "X-API-Key: sk_live_..."

Filtering

Parameter	Required	Type	Description
`market`	No	string	Declared by the endpoint in envelope.request_context.supported_filter_fields.
`ticker`	No	string	Declared by the endpoint in envelope.request_context.supported_filter_fields.
`date_from`	No	string	Declared by the endpoint in envelope.request_context.supported_filter_fields.

Python

import requests

resp = requests.get(
    "https://api.twmarketdata.com/v2/datasets/day-trading-suspension",
    params={"ticker": "2528"},
    headers={"X-API-Key": "sk_live_..."},
)
resp.raise_for_status()
print(resp.json()["data"])

OpenAPI

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

Notes & limitations

Preview grade: coverage is partial and served as a snapshot, not a fully backfilled history — the example symbol is illustrative and does not assert 2330 was actually suspended.

Request & Response

Request

curl "https://api.twmarketdata.com/v2/datasets/day-trading-suspension" \
  -H "X-API-Key: $TWMD_API_KEY"

Response

{
  "api_version": "v2",
  "dataset": "day_trading_suspension",
  "dataset_version": "v2.0.0-preview",
  "release_version": "v2.2026-07-23.preview",
  "release_date": "2026-07-23",
  "data_as_of": "2026-07-23",
  "data": [
    {
      "ticker": "<string>",
      "market": "<string>",
      "security_name": "<string>",
      "suspension_start_date": "<string>",
      "suspension_end_date": "<string>",
      "event_indicator": "<string>",
      "event_name": "<string>",
      "source_family": "<string>",
      "lineage": {
        "endpoint": "<string>",
        "source_url": "<string>",
        "source_role": "<string>",
        "source_title": "<string>",
        "source_family": "<string>",
        "request_params": "<object>",
        "source_provider": "<string>"
      },
      "data_gaps": "<array>",
      "not_investment_advice": "<boolean>"
    }
  ],
  "quality": {
    "freshness_state": "<string>",
    "freshness_as_of": "<string>",
    "completeness_ratio": "<number>",
    "quality_status": "<string>",
    "ticker_count": "<number>"
  },
  "error": {
    "error_code": "<null>",
    "error_message": "<null>",
    "dataset": "<string>",
    "request_id": "<string>",
    "blocking_gate": "<null>"
  },
  "dataset_id": "day_trading_suspension",
  "data_count": 1,
  "known_gaps": [
    "<string>"
  ],
  "warnings": [
    "<string>"
  ],
  "not_investment_advice": true
}