# sec-company-tickers `https://www.sec.gov/files/company_tickers_exchange.json` — SEC registrants with ticker, exchange (Nasdaq/NYSE/CBOE/OTC) and CIK. - **Type**: BULK_FILE · **Rights**: OFFICIAL_OPEN_DATA · daily. - **Output**: `instruments` proposals. Listed tickers (Nasdaq/NYSE/CBOE) may be created (`eq_us__`); OTC or unknown venues only enrich existing instruments (`createIfMissing: false`). - **Effect**: every US equity gets a `companies` row with CIK → EDGAR filings link to instruments. - **Quirk**: SEC uses `BRK-B`; Market Atlas canonical symbol is `BRK.B` with the dash form kept as alias.