Overview
ISO 18774:2015 specifies rules for creating a standardized, human‑readable short name for any financial instrument - the Financial Instrument Short Name (FISN). Designed for global use in trading, clearing, settlement and securities administration, the FISN provides a fixed‑structure, maximum‑length short description that improves interoperability, data consistency and Straight Through Processing (STP) across market participants.
Key topics and technical requirements
- Maximum length and character set: FISNs use up to 35 alphanumeric characters based on ISO/IEC 8859-1; the slash ("/") separates issuer and description; blanks and defined punctuation are allowed where required.
- Issuer short name: Up to 15 alphanumeric characters (can be extended for collective investment vehicles and derivatives when necessary).
- Delimiter and structure: Format is IssuerShortName/InstrumentDescription. Instrument description has up to 19 characters when issuer uses full allowance.
- Instrument description components: Sequenced, abbreviated attributes depending on instrument type - e.g., for debt: Interest rate/type, instrument type abbreviation, maturity date (YYYYMMDD), rank, pool number, class, series, tranche, trust, program, guarantee, restrictions. Interest rates omit the percent sign and use a decimal point. Perpetual instruments use a standard abbreviation.
- Type‑specific rules: Structured sequences and abbreviations are defined for debt, equity (shares, depository receipts, preferred shares, collective investment vehicles), entitlements (rights, warrants) and derivatives (options, futures, options on futures, futures on options).
- Registration Authority (RA): Responsible for allocation and maintenance of the abbreviations list, FISN allocation, applications and service provision.
- Human‑readability and interoperability: FISN complements identifiers like ISIN (ISO 6166) and CFI (ISO 10962) to aid both machine processing and investor comprehension.
Practical applications and users
- Who uses it: market data vendors, exchanges, custodians, banks, asset managers, registrars, system integrators and regulators.
- Where applied: trading screens, price feeds, settlement messages, reference data repositories, regulatory reporting and investor communications.
- Benefits: consistent short descriptions across systems, reduced ambiguity, improved STP, clearer retail investor identification, better screen space usage and enhanced data transparency/liquidity.
Related standards
For implementers, ISO 18774:2015 provides a concise, rule‑based method to generate interoperable short names that balance machine needs with human readability. Keywords: ISO 18774, FISN, Financial Instrument Short Name, securities, ISIN, CFI, STP, short name standard.
Open preview (PDF)Securities and related financial instruments — Financial Instrument Short Name (FISN)