Data sources

SEC EDGAR (the only data source)

Everything on this site comes from the U.S. Securities and Exchange Commission's free EDGAR APIs at data.sec.gov:

• Company profile (name, CIK, exchange, industry SIC code, state of incorporation, fiscal year end, business address): the EDGAR submissions API.
• Shares outstanding: the XBRL company facts API, field dei:EntityCommonStockSharesOutstanding, as reported on the cover of the company's latest 10-Q or 10-K, with the date it's "as of".
• Recent filings: the submissions API, linked to the documents on SEC.gov.

Data as of: SEC EDGAR data retrieved November 3, 2026, 3:39 PM MT. Shares outstanding are as of the cover-page date shown for each company. We follow the SEC's fair-access rules: a declared User-Agent with a contact address and well under 10 requests a second.

No prices or market caps

We don't show share prices or market caps. For a price, follow the "Free quote" link on each company page (Yahoo Finance, a third party we aren't affiliated with), or type a price you looked up into the calculator.

Which companies

Real U.S.-listed companies whose latest SEC cover page reports a single total for shares outstanding. Companies that report several share classes separately, or whose latest figure is out of date, are left out so numbers aren't misleading.

Charts

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Corrections

Spotted an error? Email hello@ytronic.com with the company and what looks wrong; we check it against the filing and fix it.