5

How can I can convert ticker symbols (which include information on the exchange) to an International Securities Identification Number (ISIN) (which contains no information on the exchange)?

Also I am interested in the other way round -- given an ISIN and a market identification code (MIC) how can I determine the ticker symbol?

Any databases around?

3

There is no simple way to convert an ISIN into a stock ticker symbol. The only way to even attempt to do so is to map the ISIN to a CUSIP or SEDOL or other national identifier and then map that identifier to a stock ticker symbol.

6

It is possible to make a REST API call providing the ISIN to get the ticker in the response:

Python code for getting ticker for ISIN=US4592001014:

import requests
url = 'https://api.openfigi.com/v1/mapping'
headers = {'Content-Type':'text/json', 'X-OPENFIGI-APIKEY':'myKey' }
payload = '[ {"idType":"ID_ISIN","idValue":"US4592001014"}]'

r = requests.post(url, data=payload, headers=headers)

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