ISIN is the acronym for The International Securities Identification Number, and CUSIP stands for The Committee on Uniform Security Identification Purposes. These are both codes used in trade and finance to translate words, phrases, or letters into another form. They are often used in communication, instructions, signs, and security. ISIN code is composed of two letters, an identifier comprised of nine alphanumeric characters, one check digit, and its purpose is for the uniform identification of securities which are traded and settled.
This code is used specifically on shares, options, debt security, offshoots, and futures trading. It is being used around the majority of the world. CUSIP is an alphanumeric code which has nine characters and is used for securities, trade clearing, and settlement, which is owned by The American Bankers Association. It is operated under S&P Global Market Intelligence.