instruments · beginner
ISIN
ISIN is the unique twelve-character International Securities Identification Number assigned to a security.
Each fully paid equity share class of an Indian company has a distinct ISIN.
Corporate actions can create temporary new ISINs for partly paid or entitlement instruments.
Brokers, depositories, and exchanges use ISIN as the master identifier in settlement.
Checking the ISIN helps avoid confusion between similarly named securities.
Part of the Market Pulse Term of the Day series — factual market vocabulary, not investment advice.