Trading Codes

Unique codes and symbols identify the securities listed for trading on NYSE Euronext regulated markets.

The ISIN Code

The Universal Trading Platform identifies all securities that trade on NYSE Euronext’s European cash markets by their unique International Securities Identification Number (ISIN). Standardized ISINs are used internationally to facilitate cross-border transactions between member markets, and to increase straight-through processing efficiencies.

An ISIN identifies the security, not the exchange on it which it trades. Each ISIN is made up of three parts: a two letter country code (ISO); a nine-character, alpha-numeric security identifying number (NSIN); and a single character check digit.

The ISIN application procedure is different for each security type. Issuers may apply for share and derivative product codes in the country of origin. ISINs for bonds are issued in the country where the bonds are deposited with a Central Security Depositary (CSD).

For more information on ISINs, please consult The Association of National Numbering Agencies (ANNA).

U.S.-listed securities continue to be identified by a unique equity or ticker symbol.

Mnemonic Symbols

In addition to an existing ISIN, NYSE Euronext’s member exchanges will assign each security and structured product that trades on our European cash markets a unique mnemonic symbol.

An equity or ticker symbol is a unique mnemonic used to identify securities listed on a particular stock market, to enter orders, and to identify executions. Mnemonic symbols may consist of letters, numbers, or a combination of both, but they will always consist only of alpha characters. In general, but not always, they end with an exchange identifier such as ‘A’ (Amsterdam) or ‘P’ (Paris).