Standardize Security Code

This project aims to provide integrated link tables between ISIN and many other company/security identity codes.

Since many link tables are too large, please refer to this Dropbox folder.

Just in case you are interested in similar data tools, I also constructed:

• Standardized Country Code
• Fama French Industry to SIC Link

Please star the projects if you feel it is useful! Many thanks for your appreciation and support!

Usage

The data format is Parquet. To read these files:

• In Python, you can use pandas.read_parquet (Doc).
• In R, you can follow Apache's official guidance.
• In MATLAB, see MathWorks guidance.
• In Stata, I have not tested the stata-parquet (GitHub). You can use Python to transform them into CSV or .dta format.

You can use URL to always read the most updated version of link tables:

import pandas as pd

df = pd.read_parquet('https://github.com/Wenzhi-Ding/Std_Security_Code/blob/main/isin/a4_orgid.pq?raw=true')

Table of Contents

• a4_orgid: Refinitiv ESG (formerly ASSET4) OrgID.
• cik: U.S. SEC's Central Index Key
• ciq_company_id-cusip: Capital IQ Company ID to CUSIP
• ciq_company_id-ticker: Capital IQ Company ID to ticker
• ciq_company_id: Capital IQ Company ID.
• company_fkey: Company Fkey from Audit Analytics
• company_name: Company name (If you are doing a fuzzy match on the company name, try this dataset!)
• cusip: CUSIP.
• ds_code: Refinitiv Datastream Code.
• ds_infocode: Refinitiv Datastream InfoCode.
• ein: U.S. Employer Identification Number
• gvkey: Global Company Key (GVKEY)
• gvkey_iid: Global Company Key (GVKEY) and Issue ID (IID).
• ibes_ticker: IBES ticker.
• reprisk_id: RepRisk ID.
• sedol: SEDOL.
• sp_institutionid: S&P Global institution ID.
• ticker: Stock ticker.
• ws_sctyppi: Refinitiv Worldscope Permanent ID.
• fisd_issue_id: Mergent FISD bond issue ID map to ISIN.
• fisd_issuer_id: Mergent FISD bond issuer ID map to ISIN.
• stkcd_china.parquet: CSMAR/Wind Chinese stock market code to ISIN.