An International Securities Identification Number (ISIN) is a standardized twelve-character identifier for one specific financial security. It is especially useful for bonds, where each issuance can have different coupon terms, maturity dates, and identifiers, unlike a reusable stock or ETF ticker. section 6.5.3
Use an ISIN to:
- Distinguish separate bond emissions from the same issuer. section 6.5.3
- Request bond metadata from an external REST API. section 5.2
- Connect security reference data with portfolio analysis and bond yields. section 6.5.3
API lookup
A value such as US36166NAJ28 can be submitted to the OpenFIGI mapping endpoint with the identifier type ID_ISIN. The returned metadata can then support bond analysis. section 5.2
