FIGI (Financial Instrument Global Identifier) Regex for JavaScript

What this pattern does

This page provides a comprehensive, battle-tested regular expression for matching figi (financial instrument global identifier), ported and verified for JavaScript. Financial data validation has zero tolerance for false negatives — a missed invalid entry can corrupt downstream calculations. The snippet below is ready to drop into your JavaScript project — whether you're validating in an Express middleware, a Next.js API route, or a client-side form.

Javascript Implementation

// FIGI (Financial Instrument Global Identifier)
// ReDoS-safe | RegexVault — Finance > Securities & Trading

const figiFinancialInstrumentGlobalIdentifierRegex = /^(?!.*[AEIOU])BBG[A-Z0-9]{9}$/;

function validateFigiFinancialInstrumentGlobalIdentifier(input: string): boolean {
  return figiFinancialInstrumentGlobalIdentifierRegex.test(input);
}

// Example
console.log(validateFigiFinancialInstrumentGlobalIdentifier("BBG000B9XRY4")); // true

Test Cases

When to use this pattern

This pattern is drawn from the Finance > Securities & Trading category and carries a ReDoS-safe certification. That matters for JavaScript developers because especially critical in long-running Node.js event loops where a ReDoS vulnerability can block the entire process. RegexVault audits patterns against known backtracking attack vectors, ensuring you have the necessary context before using this regex in a high-stakes production environment.

Common Pitfalls

Technical Notes

FIGI is an open standard (OMG) maintained by Bloomberg. The BBG prefix identifies Bloomberg as the issuer. The last 2 digits are check digits. Free API available at openfigi.com.