Stock Code Validators
Instantly verify stock codes with our free validators built for everyday investors. Includes clear explanations so you can invest with confidence. Part of our free investment tools.

CFI Validator
CFI is short for "Classification of Financial Instruments" and is a six-character alphabetic code that categorizes financial instruments according to the ISO 10962 standard.
Global · ISO 10962
Use ValidatorCUSIP Validator
CUSIP is short for "Committee on Uniform Securities Identification Procedures" and is a nine-character alphanumeric code that uniquely identifies securities in North America.
National · ANSI X9.6
Use ValidatorISIN Validator
ISIN is short for "International Securities Identification Number" and is a 12-character alphanumeric code that uniquely identifies securities globally.
Global · ISO 6166
Use ValidatorLEI Validator
LEI is short for "Legal Entity Identifier" and is a 20-character alphanumeric code that uniquely identifies legal entities globally.
Global · ISO 17442
Use ValidatorSEDOL Validator
SEDOL is short for "Stock Exchange Daily Official" and is a seven-character alphanumeric code that uniquely identifies securities in the United Kingdom and Ireland.
National · LSE Standard
Use ValidatorWKN Validator
WKN is short for "Wertpapierkennnummer" and is a six-character alphanumeric identifier used to uniquely identify securities in Germany.
National · German Securities Identification Code Standard
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