# BRD-047 — Public companies must supply stock symbol and exchange

> A PUBLIC_PROFIT brand must declare both its ticker symbol and the exchange it trades on.

- **Rule ID:** BRD-047
- **Layer:** Brand (`BRAND`)
- **Checks:** `brand.stock_symbol + brand.stock_exchange`
- **Severity:** BLOCKING — Breaking this rule gets the submission rejected outright.
- **When it bites:** Gates approval — get this wrong and registration is refused
- **How it is detected:** Deterministic (settled in code from the submitted values)
- **Fix type:** Fix the field — a better value in the form clears it
- **Required by:** TCR, Twilio, Telnyx
- **Applies:** Applies when the brand is a public company.
- **Canonical URL:** https://ekas.io/rules/10dlc/brand/brd-047/

## Why this rule exists

Public companies get elevated trust and throughput, and the ticker is what lets a vetting provider confirm the claim against an exchange listing. Without both symbol and exchange the claim cannot be checked, so it is refused.

## How to fix it

Enter the ticker symbol and the exchange (e.g. NASDAQ, NYSE).

## Example of a compliant value

```text
Stock symbol: ACME · Exchange: NASDAQ
```