What is the biggest US company by market cap?
The largest US company by market capitalization is typically a major technology or consumer firm such as Apple or Microsoft, depending on current market valuations. Rankings shift as share prices move.
Biggest US Companies by Market Cap 2026
Live rankings of the biggest US-listed companies sorted by market capitalization across NYSE and NASDAQ.
Updated todayNYSE & NASDAQRanked by market cap
Page snapshot: 15 July 2026, 9:59 am
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What Is the Biggest US Companies List by Market Cap?
It is a live directory of US-listed companies ranked from largest to smallest by market capitalization across NYSE and NASDAQ. Use it to compare size, price, volume, and short-term trend at a glance.
Market cap reflects equity value today—it is not the same as enterprise value or intrinsic value. Open a company page for deeper fundamentals and valuation context.
How We Rank US Companies by Market Cap
Companies are sorted by market capitalization (share price × shares outstanding). The table shows symbol, price, volume, market cap, and a 7-day trend so you can scan the largest US stocks quickly.
Rankings can shift intraday as prices move. Data is refreshed during US trading hours; use the stock screener for custom filters beyond this market-cap leaderboard.
FAQs
Answers about the biggest US companies list, market cap rankings, and how often this directory refreshes.
What is the biggest US companies list by market cap?
It is a live directory of US-listed companies ranked from largest to smallest by market capitalization across NYSE and NASDAQ. Use it to compare size, price, volume, and short-term price trend at a glance.
How are US companies ranked on this page?
Companies are sorted by market capitalization (share price × shares outstanding). The table shows symbol, price, volume, market cap, and a 7-day trend so you can scan the largest US stocks quickly.
How many companies are listed on US exchanges?
This directory tracks US-listed names on major US exchanges including NYSE and NASDAQ, spanning sectors from mega-cap technology to smaller listed companies.
How often is this US companies list updated?
Prices and market data refresh during US trading hours. Market capitalization moves with share price, so rankings can shift intraday—open a company page for the latest detail.
Is market cap the same as company value?
Market cap reflects what the market is paying for equity today. It differs from enterprise value and intrinsic value, which include debt, cash, and model-based fair value estimates.