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Companies & Events

Capital Formation Events

Name: Capital Formation Events
Creator: TW Market Data
License: https://twmarketdata.com/en/legal/licensing

Capital-formation events per ticker: cash capital-increase schedules (TWSE TWT48U) AND capital-reduction history — cash reduction, loss-offset, share-swap, and other — with event dates, subtypes, and ratio where disclosed. NOTE: this supersedes the prior 5-row cash-increase-only baseline. Not a forecast, not a recommendation.

← Capital Formation Events overview

VerifiedSource: TWSE / MOPS·Plan: starter·Cost: 2 credits·GET /v2/datasets/capital-formation-events

Capital Formation Events is a Taiwan market dataset sourced from TWSE / MOPS, served by TW Market Data as GET /v2/datasets/capital-formation-events.

Latest event_date is 2026-08-03 — a scheduled FUTURE event date, not a freshness signal.

Overview

Field	Type	Description
`ticker`	string
`market`	string
`event_date`	string
`event_type`	string	cash_capital_increase_schedule \| capital_reduction
`event_subtype`	string	cash/loss_offset/share_swap/other reduction
`announcement_date`	string
`effective_date`	null
`cash_amount`	null
`stock_amount`	null
`price_per_share`	null	cash-increase only
`ratio_value`	null	NULL unless % in subject

Coverage

Rows	~14,718
Window	2005-01-03 – 2026-09-16
Grade	Verified
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",
  "endpoint": "/v2/datasets/capital-formation-events",
  "request_id": "req_e56b30ee2509",
  "plan_id": "enterprise",
  "dataset": "capital_formation_events",
  "dataset_id": "capital_formation_events",
  "request_context": {
    "scope": "twse_only_narrow_capital_formation_baseline",
    "coverage_type": "explicit_cash_capital_increase_schedule_only",
    "filters": {
      "ticker": "2883",
      "market": null,
      "event_type": null,
      "source_family": null,
      "date_from": null,
      "date_to": null,
      "limit": 50
    },
    "min_event_date": "2018-06-25",
    "max_event_date": "2026-01-07"
  },
  "quality": {
    "row_count": 50,
    "twse_only_scope": true,
    "raw_payload_exposed": false
  },
  "lineage": {
    "source_providers": [
      "twse_mops"
    ],
    "source_roles": [
      "capital_formation_history"
    ],
    "source_families": [
      "mops_major_event"
    ]
  },
  "error": null,
  "data": [
    {
      "ticker": "2883",
      "market": "TW",
      "event_date": "2026-01-07",
      "event_type": "capital_reduction",
      "event_subtype": "capital_reduction_other",
      "announcement_date": "2026-01-07",
      "effective_date": null,
      "cash_amount": null,
      "stock_amount": null,
      "price_per_share": null,
      "ratio_value": null,
      "source_event_ref": "MOPS:major_event:2883:2026-01-07:capital_reduction",
      "source_provider": "twse_mops",
      "source_role": "capital_formation_history",
      "source_family": "mops_major_event",
      "lineage": {
        "subject": "<Chinese value - see the zh page>",
        "event_class": "<Chinese value - see the zh page>",
        "ratio_source": "not_in_subject",
        "source_table": "mops_major_event_items",
        "coverage_note": "<Chinese value - see the zh page>"
      },
      "data_gaps": []
    },
    {
      "ticker": "2883",
      "market": "TW",
      "event_date": "2025-12-19",
      "event_type": "capital_reduction",
      "event_subtype": "capital_reduction_other",
      "announcement_date": "2025-12-19",
      "effective_date": null,
      "cash_amount": null,
      "stock_amount": null,
      "price_per_share": null,
      "ratio_value": null,
      "source_event_ref": "MOPS:major_event:2883:2025-12-19:capital_reduction",
      "source_provider": "twse_mops",
      "source_role": "capital_formation_history",
      "source_family": "mops_major_event",
      "lineage": {
        "subject": "<Chinese value - see the zh page>",
        "event_class": "<Chinese value - see the zh page>",
        "ratio_source": "not_in_subject",
        "source_table": "mops_major_event_items",
        "coverage_note": "<Chinese value - see the zh page>"
      },
      "data_gaps": []
    }
  ],
  "data_count": 50,
  "known_gaps": [
    "twse_only_narrow_baseline",
    "explicit_cash_capital_increase_schedule_only",
    "no_tpex_decap_coverage"
  ],
  "data_gaps": [
    "twse_only_narrow_baseline",
    "explicit_cash_capital_increase_schedule_only",
    "no_tpex_decap_coverage"
  ],
  "query": {
    "ticker": "2883",
    "market": null,
    "event_type": null,
    "source_family": null,
    "date_from": null,
    "date_to": null,
    "limit": 50
  },
  "meta": {
    "rows_returned": 50,
    "mandatory_contract_fields_present": [
      "data",
      "error",
      "lineage"
    ],
    "plan": "enterprise",
    "row_limit": 100000,
    "is_limited": false
  },
  "warnings": [
    "not_investment_advice"
  ],
  "envelope": {
    "dataset_id": "capital_formation_events",
    "request_context": {
      "scope": "twse_only_narrow_capital_formation_baseline",
      "coverage_type": "explicit_cash_capital_increase_schedule_only",
      "filters": {
        "ticker": "2883",
        "market": null,
        "event_type": null,
        "source_family": null,
        "date_from": null,
        "date_to": null,
        "limit": 50
      },
      "min_event_date": "2018-06-25",
      "max_event_date": "2026-01-07"
    },
    "quality": {
      "row_count": 50,
      "twse_only_scope": true,
      "raw_payload_exposed": false
    },
    "lineage": {
      "source_providers": [
        "twse_mops"
      ],
      "source_roles": [
        "capital_formation_history"
      ],
      "source_families": [
        "mops_major_event"
      ]
    },
    "error": null,
    "data": [
      {
        "ticker": "2883",
        "market": "TW",
        "event_date": "2026-01-07",
        "event_type": "capital_reduction",
        "event_subtype": "capital_reduction_other",
        "announcement_date": "2026-01-07",
        "effective_date": null,
        "cash_amount": null,
        "stock_amount": null,
        "price_per_share": null,
        "ratio_value": null,
        "source_event_ref": "MOPS:major_event:2883:2026-01-07:capital_reduction",
        "source_provider": "twse_mops",
        "source_role": "capital_formation_history",
        "source_family": "mops_major_event",
        "lineage": {
          "subject": "<Chinese value - see the zh page>",
          "event_class": "<Chinese value - see the zh page>",
          "ratio_source": "not_in_subject",
          "source_table": "mops_major_event_items",
          "coverage_note": "<Chinese value - see the zh page>"
        },
        "data_gaps": []
      },
      {
        "ticker": "2883",
        "market": "TW",
        "event_date": "2025-12-19",
        "event_type": "capital_reduction",
        "event_subtype": "capital_reduction_other",
        "announcement_date": "2025-12-19",
        "effective_date": null,
        "cash_amount": null,
        "stock_amount": null,
        "price_per_share": null,
        "ratio_value": null,
        "source_event_ref": "MOPS:major_event:2883:2025-12-19:capital_reduction",
        "source_provider": "twse_mops",
        "source_role": "capital_formation_history",
        "source_family": "mops_major_event",
        "lineage": {
          "subject": "<Chinese value - see the zh page>",
          "event_class": "<Chinese value - see the zh page>",
          "ratio_source": "not_in_subject",
          "source_table": "mops_major_event_items",
          "coverage_note": "<Chinese value - see the zh page>"
        },
        "data_gaps": []
      }
    ],
    "known_gaps": [
      "twse_only_narrow_baseline",
      "explicit_cash_capital_increase_schedule_only",
      "no_tpex_decap_coverage"
    ],
    "warnings": [
      "not_investment_advice"
    ],
    "envelope": {
      "dataset_id": "capital_formation_events",
      "scope": "twse_only_narrow_capital_formation_baseline",
      "row_count": 50
    }
  }
}

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_event_refsource_providersource_rolesource_familylineagedata_gaps

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. (2026). Capital Formation Events (Version 2026-08-03) [Data set]. TW Market Data. Retrieved 2026-09-05, from https://twmarketdata.com/en/docs/api/companies-events/capital-formation-events

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.

Attention & disposition events
Joins on event_date + market + ticker
Major Event Taxonomy
Joins on event_date + market + ticker
MOPS major events (structured)
Joins on event_date + market + ticker
Stock split & par-value events
Joins on event_date + market + ticker
Company news
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/capital-formation-events?ticker=2883" \
  -H "X-API-Key: sk_live_..."

Filtering

Parameter	Required	Type	Description
`symbol`	Yes	string	Ticker, e.g. 2330.
`start_date`	No	string (YYYY-MM-DD)	Start of the query range.
`end_date`	No	string (YYYY-MM-DD)	End of the query range.
`limit`	No	integer	Maximum rows to return.

Python

import requests

resp = requests.get(
    "https://api.twmarketdata.com/v2/datasets/capital-formation-events",
    params={"ticker": "2883"},
    headers={"X-API-Key": "sk_live_..."},
)
resp.raise_for_status()
print(resp.json()["data"])

OpenAPI

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

Request & Response

Request

curl "https://api.twmarketdata.com/v2/datasets/capital-formation-events?symbol=2330&start_date=2026-01-01&end_date=2026-06-30&limit=5" \
  -H "X-API-Key: $TWMD_API_KEY"

Response

{
  "api_version": "v2",
  "endpoint": "/v2/datasets/capital-formation-events",
  "request_id": "req_e56b30ee2509",
  "plan_id": "enterprise",
  "dataset": "capital_formation_events",
  "dataset_id": "capital_formation_events",
  "quality": {
    "row_count": "<number>",
    "twse_only_scope": "<boolean>",
    "raw_payload_exposed": "<boolean>"
  },
  "error": null,
  "data": [
    {
      "ticker": "<string>",
      "market": "<string>",
      "event_date": "<string>",
      "event_type": "<string>",
      "event_subtype": "<string>",
      "announcement_date": "<string>",
      "effective_date": "<null>",
      "cash_amount": "<null>",
      "stock_amount": "<null>",
      "price_per_share": "<null>",
      "ratio_value": "<null>",
      "source_event_ref": "<string>",
      "source_provider": "<string>",
      "source_role": "<string>",
      "source_family": "<string>",
      "lineage": {
        "subject": "<string>",
        "event_class": "<string>",
        "ratio_source": "<string>",
        "source_table": "<string>",
        "coverage_note": "<string>"
      },
      "data_gaps": "<array>"
    }
  ],
  "data_count": 50,
  "known_gaps": [
    "<string>"
  ],
  "data_gaps": [
    "<string>"
  ],
  "query": {
    "ticker": "<string>",
    "market": "<null>",
    "event_type": "<null>",
    "source_family": "<null>",
    "date_from": "<null>",
    "date_to": "<null>",
    "limit": "<number>"
  },
  "meta": {
    "rows_returned": "<number>",
    "mandatory_contract_fields_present": "<array>",
    "plan": "<string>",
    "row_limit": "<number>",
    "is_limited": "<boolean>"
  },
  "warnings": [
    "<string>"
  ],
  "envelope": {
    "dataset_id": "<string>",
    "request_context": {
      "scope": "<string>",
      "coverage_type": "<string>",
      "filters": "<object>",
      "min_event_date": "<string>",
      "max_event_date": "<string>"
    },
    "quality": {
      "row_count": "<number>",
      "twse_only_scope": "<boolean>",
      "raw_payload_exposed": "<boolean>"
    },
    "lineage": {
      "source_providers": "<array>",
      "source_roles": "<array>",
      "source_families": "<array>"
    },
    "error": "<null>",
    "data": "<array>",
    "known_gaps": "<array>",
    "warnings": "<array>",
    "envelope": {
      "dataset_id": "<string>",
      "scope": "<string>",
      "row_count": "<number>"
    }
  }
}