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Capital Flows

Securities lending

Name: Securities lending
Creator: TW Market Data
License: https://twmarketdata.com/en/legal/licensing

Daily securities-lending balances per listed stock from the official TWSE securities-lending report — lent shares and outstanding balance.

← Securities lending overview

VerifiedSource: TWSE·Plan: starter·Cost: 2 credits·GET /v2/datasets/chip-deep-securities-lending-daily

Securities lending is a Taiwan market dataset sourced from TWSE, served by TW Market Data as GET /v2/datasets/chip-deep-securities-lending-daily.

Overview

securities-lending returns one row per stock per trading day with the securities-lending volume and outstanding balance from the official TWSE report. Each row carries its source role so a balance is traceable to the official report rather than taken on trust.

Field	Type	Description
`symbol`	string	Ticker.
`as_of_date`	string
`market`	string
`prev_lending_balance`	number
`borrowed_volume`	null
`returned_volume`	null
`lending_balance`	number	Outstanding securities-lending balance (shares).
`close_price`	number
`market_value`	null

Coverage

Rows	~3,552,131
Window	2007-01-02 – 2026-08-31
Grade	Verified
Measured	2026-09-01from the dataset registry

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/chip-deep-securities-lending-daily",
  "request_id": "req_beeece267a37",
  "plan_id": "enterprise",
  "dataset": "securities_lending",
  "query": {
    "symbol": "1216",
    "as_of_date": null,
    "start_date": null,
    "end_date": null,
    "market": null,
    "limit": 50,
    "legacy_aliases_used": {
      "ticker": false,
      "date_from": false,
      "date_to": false,
      "offset": false,
      "sort_by": false,
      "sort_order": false
    }
  },
  "meta": {
    "rows_returned": 50,
    "mandatory_contract_fields_present": [
      "api_version",
      "data",
      "data_as_of"
    ],
    "plan": "enterprise",
    "row_limit": 100000,
    "is_limited": false
  },
  "envelope": {
    "api_version": "v2",
    "dataset": "securities_lending",
    "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": "1216",
      "as_of_date": "2026-08-03",
      "family": "chip_deep",
      "field_group_type": "canonical",
      "dataset_view": "securities_lending_v1"
    },
    "data": [
      {
        "symbol": "1216",
        "as_of_date": "2026-08-03",
        "market": "TWSE",
        "prev_lending_balance": 280505000,
        "borrowed_volume": null,
        "returned_volume": null,
        "lending_balance": 278649000,
        "close_price": 73,
        "market_value": null
      },
      {
        "symbol": "1216",
        "as_of_date": "2026-07-31",
        "market": "TWSE",
        "prev_lending_balance": 287992000,
        "borrowed_volume": null,
        "returned_volume": null,
        "lending_balance": 280505000,
        "close_price": 73.8,
        "market_value": null
      }
    ],
    "quality": {
      "freshness_state": "fresh",
      "freshness_as_of": "2026-08-03",
      "completeness_ratio": 1,
      "quality_status": "ready"
    },
    "lineage": {
      "source_role": "canonical",
      "selected_source": "securities_lending",
      "fallback_chain": [],
      "policy_notes": [
        "<Chinese value - see the zh page>",
        "contract-aligned filters: symbol/as_of_date/start_date/end_date/market",
        "nullable optional fields are preserved as-is"
      ]
    },
    "error": {
      "error_code": null,
      "error_message": null,
      "dataset": "securities_lending",
      "request_id": "read-api-7c02e965e99d",
      "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.

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.). Securities lending [Data set]. TW Market Data. Retrieved 2026-09-05, from https://twmarketdata.com/en/docs/api/capital-flows/securities-lending

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.

Institutional flow
Joins on as_of_date + market + ticker
Margin & short
Joins on as_of_date + market + ticker
GHG Carbon Disclosure (Scope 1/2/3)
Joins on as_of_date + market + ticker
Market value weight
Joins on as_of_date + market + ticker
Futures market (daily)
Joins on as_of_date + 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 envelope.data array.

curl "https://api.twmarketdata.com/v2/datasets/chip-deep-securities-lending-daily?symbol=2330&start_date=2026-06-01&end_date=2026-07-17" \
  -H "X-API-Key: sk_live_..."

Filtering

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

Python

import requests

resp = requests.get(
    "https://api.twmarketdata.com/v2/datasets/chip-deep-securities-lending-daily",
    params={"symbol": "2330"},
    headers={"X-API-Key": "sk_live_..."},
)
resp.raise_for_status()
print(resp.json()["envelope"]["data"])

OpenAPI

This endpoint is GET /v2/datasets/chip-deep-securities-lending-daily. The full machine-readable schema (parameters, security, response envelope) lives in the OpenAPI spec.

Notes & limitations

The lending balance is the outstanding position, not the same as the short-sale balance in margin-short — the two are distinct mechanisms and should not be summed.

Request & Response

Request

curl "https://api.twmarketdata.com/v2/datasets/chip-deep-securities-lending-daily?symbol=2330&start_date=2026-01-01&end_date=2026-06-30" \
  -H "X-API-Key: $TWMD_API_KEY"

Response

{
  "api_version": "v2",
  "endpoint": "/v2/datasets/chip-deep-securities-lending-daily",
  "request_id": "req_beeece267a37",
  "plan_id": "enterprise",
  "dataset": "securities_lending",
  "query": {
    "symbol": "<string>",
    "as_of_date": "<null>",
    "start_date": "<null>",
    "end_date": "<null>",
    "market": "<null>",
    "limit": "<number>",
    "legacy_aliases_used": {
      "ticker": "<boolean>",
      "date_from": "<boolean>",
      "date_to": "<boolean>",
      "offset": "<boolean>",
      "sort_by": "<boolean>",
      "sort_order": "<boolean>"
    }
  },
  "meta": {
    "rows_returned": "<number>",
    "mandatory_contract_fields_present": "<array>",
    "plan": "<string>",
    "row_limit": "<number>",
    "is_limited": "<boolean>"
  },
  "envelope": {
    "api_version": "<string>",
    "dataset": "<string>",
    "dataset_version": "<string>",
    "release_version": "<string>",
    "release_date": "<string>",
    "data_as_of": "<string>",
    "request_context": {
      "ticker": "<string>",
      "as_of_date": "<string>",
      "family": "<string>",
      "field_group_type": "<string>",
      "dataset_view": "<string>"
    },
    "data": "<array>",
    "quality": {
      "freshness_state": "<string>",
      "freshness_as_of": "<string>",
      "completeness_ratio": "<number>",
      "quality_status": "<string>"
    },
    "lineage": {
      "source_role": "<string>",
      "selected_source": "<string>",
      "fallback_chain": "<array>",
      "policy_notes": "<array>"
    },
    "error": {
      "error_code": "<null>",
      "error_message": "<null>",
      "dataset": "<string>",
      "request_id": "<string>",
      "blocking_gate": "<null>"
    }
  }
}