Methodology

Market capitalisation is shares outstanding × closing price. Where the market publishes a company-level figure directly it is used as reported; otherwise it is computed from the share count on the cover page of the company’s most recent SEC filing. Either way the figure moves when the company files or the market closes, not when a vendor revises an estimate.

Where a company lists several classes of stock, the share count is the company-wide total and the market cap describes the whole company. Each class keeps its own page, but rankings and totals count the company once. Getting this wrong is the single most common way a “total market cap” number ends up inflated.

• SEC EDGAR — share counts, revenue and net income, via the XBRL frames and companyconcept APIs. US government work, public domain.
• Nasdaq — closing price, market cap, sector and country of domicile, from the public screener.
• CoinGecko — crypto prices, market caps and dominance.
• European Central Bank, via Frankfurter — daily reference exchange rates.

The two equity sources do different jobs and are not interchangeable. Revenue and earnings come only from filings, because a filing is the company’s own statement under legal obligation. Prices and caps come from the market, because that is where a price exists.

Every price here is the close of a completed trading session, dated on the page it appears on. Nothing on this site is a live or intraday quote, and none of it should be used as one.

That is a deliberate choice rather than a limitation. Market data at least one full trading day old carries no exchange licence requirement and no securities-information-processor entitlement — it is the tier anyone may publish. Real-time consolidated data is a separately licensed product with per-user reporting obligations, and republishing it without that licence would be a different thing entirely from what this site does.

Practically, it also matters less than it sounds. Market cap moves with price, but the questions this site answers — how large a company is relative to another, how the market divides by country and sector, what a valuation implies per share — are not questions a fifteen-minute delay changes the answer to.

One gap remains, and it is structural rather than temporary: companies not listed in the US. Toyota, Nestlé and Tencent are not here, because neither an SEC filing nor a US exchange listing exists for them. A figure described as a world total would be wrong, so nothing here claims to be one.

Two gaps that used to exist no longer do, and the reason is worth stating because it explains why two sources are better than one. SEC bulk endpoints drop facts tagged per share class, which hid every multi-class company — Meta, Berkshire, Visa, Mastercard — and they cover foreign private issuers poorly, which hid most large ADRs. Market data supplies caps for all of them.

A company still missing a figure is excluded from rankings on that metric rather than shown with a guessed one.

Missing figures render as an em dash and the row drops out of any ranking on that metric. A company that does not report revenue is not a company with revenue of zero, and sorting it as zero would state something false. The same applies to loss-making companies in earnings rankings — they are excluded, not ranked at the bottom.

Fundamentals refresh daily. Filing data only changes when companies file, so most figures move quarterly. This build covers 7,687 listings and was last updated 9 Aug 2026.