Check digit
The last character of an ISIN, computed by the modulus 10 "Double-Add-Double" method, which establishes that the ISIN is valid.
This one is not written up yet
The definition above is the short version. A full explanation — how it works, a worked example and the exam traps — is still being written. In the meantime the chapter below covers it in context.
Written up from the same chapter
- DematerialisationConverting securities held as physical certificates into book-entry holdings: the certificates are defaced, mutilated and surrendered to the issuer, and an equivalent quantity is credited to the holder's demat account.
- ISINThe 12-character code (ISO 6166) that identifies one specific security in the depository system — country prefix, nine-character basic number and a check digit, as in INE475C01012.
- RematerialisationThe reverse of dematerialisation — the demat account is debited and the issuer prints fresh physical certificates for the same quantity, to be despatched within 30 days.
Where this is taught
Free preparation for NISM Series VIRelated terms
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