Bloomberg Ticker Regex for JavaScript

What this pattern does

This page provides a comprehensive, battle-tested regular expression for matching bloomberg ticker, 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

// Bloomberg Ticker
// ReDoS-safe | RegexVault — Finance > Securities & Trading

const bloombergTickerRegex = /^[A-Z0-9]{1,12}(?:[:\/]\s?[A-Z0-9]{1,2}|(?:\s[A-Z]{2}))(?:\s(?:Equity|Corp|Index|Curncy|Comdty))?$/;

function validateBloombergTicker(input: string): boolean {
  return bloombergTickerRegex.test(input);
}

// Example
console.log(validateBloombergTicker("AAPL US")); // 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

Bloomberg format: security identifier + exchange/country code + optional asset class (Equity, Comdty, Corp, Govt, Curncy). This pattern matches the ticker+exchange portion. Full Bloomberg parsing requires the asset class suffix.