TickerInside Identifiers.json API
The Identifiers.json API from TickerInside — 1 operation(s) for identifiers.json.
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OpenAPI Specification
openapi: 3.2.0
info:
title: TickerInside Identifiers.json API
version: '1'
summary: Holdings of 5,433 US ETFs, which ETFs hold a stock, and overlap, as static JSON.
description: TickerInside is an open, machine-readable database of US ETF holdings, with the source and date of each holding.
termsOfService: https://tickerinside.com/terms/
contact:
name: TickerInside
email: contact@tickerinside.com
url: https://tickerinside.com/api/
license:
name: CC BY 4.0
identifier: CC-BY-4.0
servers:
- url: https://tickerinside.com/api/v1
description: Static JSON files, and five answers computed from them when asked. No key.
security: []
tags:
- name: Identifiers.json
paths:
/identifiers.json:
get:
operationId: getIdentifiers
summary: Identifiers that outlive a ticker
description: 'One row for each of the 10,852 funds and stocks with a file here: ticker, name, asset type, the exchange it is listed on, its composite and share class FIGIs from OpenFIGI, its SEC CIK and, for a fund, its SEC series and class ids, in one file of 1.3 MB, and the same rows in /api/v1/identifiers.csv. A ticker can change, and a ticker given up can pass to another security. Key your records on the composite FIGI or, for a fund, its SEC class id, not on the ticker: neither changes with the ticker nor passes to another security. A CIK names the company or trust that files with the SEC, and several securities can share one. Of them, 10,753 have a FIGI, 9,831 a CIK and 5,425 a series id; a field is null where its source does not list the security yet. Each fund and stock file carries its row''s values under identifiers.'
externalDocs:
url: https://tickerinside.com/api/#identifiers
responses:
'200':
description: 'The file. The example is a real answer, shortened: long lists and maps keep their first entries.'
content:
application/json:
schema:
$ref: '#/components/schemas/Identifiers'
example:
read_on: '2026-10-12'
count: 10852
note: 'One row per fund and stock with a file here, the columns in the order of fields: the ticker, the name its file gives, asset_type (etf, etn or stock), the exchange it is listed on, its composite FIGI (the US listing) and share class FIGI, its SEC CIK (for a fund, that of the registrant that files for it) and, for a fund, its SEC series and class ids. A ticker can change, and a ticker given up can pass to another security. Key your records on the composite FIGI or, for a fund, its SEC class id, not on the ticker: neither changes with the ticker nor passes to another security. A CIK names the company or trust that files with the SEC, and several securities can share one. A field is null where its source does not list the security yet. The same values are in each fund and stock file, under identifiers.'
fields:
- ticker
- name
- asset_type
counts:
securities: 10852
etf: 5797
etn: 15
stock: 5040
exchange: 10755
composite_figi: 10753
share_class_figi: 10753
cik: 9831
series_id: 5425
class_id: 4638
sources:
- name: OpenFIGI
url: https://api.openfigi.com/v3/mapping
fields:
- composite_figi
- share_class_figi
read_on: '2026-10-12'
terms: 'FIGIs are in the public domain under OpenFIGI''s terms: https://www.openfigi.com/docs/terms-of-service'
- name: SEC company tickers
url: https://www.sec.gov/files/company_tickers_exchange.json
fields:
- cik
read_on: '2026-10-12'
- name: SEC fund tickers
url: https://www.sec.gov/files/company_tickers_mf.json
fields:
- cik
- series_id
- class_id
read_on: '2026-10-12'
securities:
- - A
- Agilent Technologies
- stock
- - AA
- Alcoa Corporation
- stock
- - AAA
- Alternative Access First Priority CLO Bond ETF
- etf
license: CC BY 4.0
attribution: Credit TickerInside with a link to this file, or to the page that shows the figure, wherever the medium allows a link, and by name where it does not. How you mark the link is up to you.
'304':
description: 'Not modified: the ETag of your copy, sent in If-None-Match, is still current. Files are cached five minutes.'
'503':
description: 'The file could not be served just then: retry after a minute. uptime says whether the site fails its own checks.'
content:
application/json:
schema:
$ref: '#/components/schemas/Unavailable'
tags:
- Identifiers.json
components:
schemas:
Unavailable:
type: object
additionalProperties: true
required:
- error
- message
- status
- uptime
properties:
error:
type: string
const: unavailable
message:
type: string
status:
type: string
description: The nightly report.
uptime:
type: string
description: 'The live checks: whether the site fails its own checks.'
Identifiers:
type: object
properties:
read_on:
type:
- string
- 'null'
description: The day the sources were last read. Each source's own date is in sources.
count:
type:
- integer
- 'null'
description: How many securities are listed, the length of securities.
note:
type:
- string
- 'null'
description: How to read the rows.
fields:
type:
- array
- 'null'
items:
type:
- 'null'
- string
description: 'The names of the columns of each row, in their order: ticker, name, then the fields of the identifiers object a fund or stock file carries.'
counts:
type: object
properties:
securities:
type:
- integer
- 'null'
etf:
type:
- integer
- 'null'
etn:
type:
- integer
- 'null'
stock:
type:
- integer
- 'null'
exchange:
type:
- integer
- 'null'
composite_figi:
type:
- integer
- 'null'
share_class_figi:
type:
- integer
- 'null'
cik:
type:
- integer
- 'null'
series_id:
type:
- integer
- 'null'
class_id:
type:
- integer
- 'null'
additionalProperties: true
description: How many rows there are, by asset_type, and how many have each field.
sources:
type:
- array
- 'null'
items:
type: object
properties:
name:
type:
- string
- 'null'
url:
type:
- string
- 'null'
fields:
type:
- array
- 'null'
items:
type:
- 'null'
- string
read_on:
type:
- string
- 'null'
terms:
type:
- string
- 'null'
additionalProperties: true
description: 'Where each column comes from: name, url, the fields it gives, read_on (for the directory, the date of its file) and, for OpenFIGI, its terms.'
securities:
type:
- array
- 'null'
items:
type: array
prefixItems:
- title: ticker
type: string
- title: name
type:
- string
- 'null'
- title: asset_type
type: string
- title: exchange
type:
- string
- 'null'
- title: composite_figi
type:
- string
- 'null'
- title: share_class_figi
type:
- string
- 'null'
- title: cik
type:
- string
- 'null'
- title: series_id
type:
- string
- 'null'
- title: class_id
type:
- string
- 'null'
items:
type:
- 'null'
- string
description: 'One row per fund and stock with a file here, in ticker order, in the columns of fields: [ticker, name, asset_type, exchange, composite_figi, share_class_figi, cik, series_id, class_id]. A fund''s file is /api/v1/fund/{ticker}.json, a stock''s /api/v1/sec/{ticker}.json.'
license:
type:
- string
- 'null'
description: The licence the data is published under.
attribution:
type:
- string
- 'null'
description: 'How to credit the data: a link to this file where the medium allows one, the name where it does not.'
additionalProperties: true
required:
- read_on
- count
- note
- fields
- counts
- sources
- securities
- license
- attribution
externalDocs:
description: The reference, with examples and recipes
url: https://tickerinside.com/api/