Largest Companies in the World by Market Cap

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The largest companies in the world by market cap are ranked by one number: the total market value of each company’s shares. That figure is the share price multiplied by the number of shares outstanding. It moves every trading day, so this order reflects a snapshot from Nov. 9, 2026, not a permanent standing. In that snapshot, Apple holds the top spot, and Nvidia, Microsoft, Alphabet and Amazon complete the top five.

How the Ranking Is Calculated

Market capitalization uses a simple formula:

Market cap = shares outstanding × current share price

As a hypothetical example, a company with 2 billion shares trading at $150 has a market cap of $300 billion. If the price rises to $165, a 10% gain, the market cap becomes $330 billion even though nothing about the company’s operations changed that day. Every ranking by market cap is therefore a ranking by investor valuation at a moment in time.

The share count changes too, though more slowly. Buybacks retire shares and shrink the count. New stock issuance, employee stock compensation and stock-financed acquisitions add shares. A stock split changes the count and the price in opposite directions, leaving market cap unchanged.

Share Price Does Not Set the Order

Share price is the easiest place to misread the list. Eli Lilly trades at more than $1,400 per share and ASML at more than $1,500, yet both rank below Apple, whose shares trade around $350. Saudi Aramco’s dollar-converted price is under $7, and it still ranks in the top 10.

The difference is the share count. Dividing the snapshot market cap by the snapshot price gives an approximate implied number of shares:

• Apple: $5.09 trillion ÷ $350.60 ≈ 14.5 billion shares
• Nvidia: $4.27 trillion ÷ $176.81 ≈ 24.2 billion shares
• Saudi Aramco: $1.68 trillion ÷ $6.96 ≈ 240 billion shares

These are rough figures based on rounded market caps and a currency-converted price. Nvidia’s stock trades at about half of Apple’s price, but Nvidia has far more shares, which keeps its total value in the trillions. Aramco’s very low per-share price reflects an enormous share count, most of it held by the Saudi state.

Companies With More Than One Share Class

Some companies issue several classes of stock. Alphabet has Class A shares (GOOGL) and Class C shares (GOOG), and Berkshire Hathaway has Class A shares and the much lower-priced Class B shares (BRK-B). A single ticker represents only one class. A company-level market cap has to count every class, so you cannot divide it by one class’s price to get a meaningful share count. The implied-share calculation above works only for companies with a single class of common stock.

Foreign Listings and Currency Conversion

Not every company trades in dollars. Saudi Aramco is listed on the Tadawul (Saudi Exchange) under 2222, and its value is set in Saudi riyals. Samsung and SK Hynix trade in Seoul in Korean won, and several Chinese banks trade in Shanghai or Hong Kong. For a global ranking, those values are converted into US dollars, so a company’s position can change because of exchange rates alone. A weaker home currency lowers its dollar market cap even if the local share price is flat.

Some companies appear through US-listed shares. TSMC’s TSM ticker is an American depositary receipt traded on the New York Stock Exchange, which represents shares of the Taiwan-listed company. AstraZeneca and Novartis also show US-traded tickers. The market cap still refers to the whole company, not just the US-traded portion.

Total Shares vs. Free Float

Market cap counts all outstanding shares, including those held by governments, founders or parent companies that rarely trade. Saudi Aramco is the clearest example: the Saudi government owns the large majority of the company, so only a small slice of its market cap trades freely. Index providers often weight companies by free float instead. The S&P 500, for example, uses float-adjusted market cap. That can make a company’s weight in an index differ from its position in a raw market cap ranking.

What Market Cap Tells You and What It Does Not

Market cap answers one question: what would it cost, at today’s price, to own every share of the company’s equity? That makes it a useful size measure for comparing companies across countries and industries, and it determines how much of a cap-weighted index fund each company takes up.

It leaves out several things:

• Debt and cash. Market cap covers equity only. Enterprise value adds debt and subtracts cash, so two companies with the same market cap can have very different total claims on their businesses.
• Revenue and profit. The companies at the top of this list mostly generate large revenue and profits, but the ranking does not depend on them. Investors price future growth, which is why a company with modest current earnings can rank above one with much larger sales.
• Assets and balance-sheet size. Banks are the sharpest example. Chinese state-owned banks such as ICBC, China Construction Bank and Agricultural Bank of China hold vast balance sheets, yet their market caps sit far below the tech leaders.
• Quality or safety. A large market cap reflects what investors pay, not whether the price is reasonable.

Reading the Top of the List

The Trillion-Dollar Technology Tier

The five largest companies are all American technology businesses, but they earn money in different ways:

• Apple sells consumer hardware led by the iPhone, plus a growing services business.
• Nvidia designs graphics processors. Demand for its chips in AI drove the share-price surge that began in 2024 and put it in competition with Apple and Microsoft for first place.
• Microsoft licenses software such as Windows and Office and gets a rising share of its revenue from cloud computing, where it is a market leader.
• Alphabet is Google’s parent: search, YouTube, Android and Google Cloud, plus “Other Bets” such as the self-driving unit Waymo.
• Amazon combines e-commerce with Amazon Web Services, the world’s largest cloud provider and the source of a substantial share of Amazon’s operating profit.

These five are each valued in the trillions. The gap between them changes often. Nvidia and Microsoft in particular have swapped positions repeatedly.

Semiconductors Across the Ranking

Chip companies make up a large part of the list, not just Nvidia. TSMC is a pure-play foundry: it manufactures chips that other companies design. Broadcom, AMD, Micron, SK Hynix and Samsung (whose business extends well beyond chips) are in the top 25. ASML, which makes the lithography machines chipmakers depend on, is also there, and CXMT and Intel appear further down the top 50.

SpaceX: A Recent Public Listing

SpaceX, founded by Elon Musk in 2002, builds reusable rockets, runs the Starlink satellite internet service and added an AI business in 2023. It went public on Nasdaq in June 2026, selling 555.6 million shares at $135 each. Before that, its value was set in private funding rounds rather than by public trading, which is why it was absent from earlier market cap rankings. As a newly listed stock, it has a short public trading history compared with the companies around it.

Saudi Aramco: The Energy Exception

Aramco is the highest-ranked company outside technology and the only energy company in the top 10. It is an integrated oil and gas company, producing crude oil and natural gas upstream and running refining, petrochemicals and distribution downstream.

Meta, Broadcom and Tesla: A Tight Cluster

Positions 8 through 11 (Saudi Aramco, Meta Platforms, Broadcom and Tesla) sit within a narrow band of about $1.5 trillion to $1.7 trillion, so a single strong or weak week can reorder them. Meta owns Facebook, Instagram, Messenger and WhatsApp and invests heavily in augmented and virtual reality through Reality Labs. Tesla makes electric vehicles and energy storage products and has pushed into automated driving software. Its valuation has long been much higher relative to its earnings than those of traditional automakers.

Beyond Technology

Below the top tier, the list spreads across sectors:

• Pharmaceuticals and health: Eli Lilly is the largest drugmaker in the ranking, followed by Johnson & Johnson, AbbVie, Roche, Merck, Novartis and AstraZeneca. UnitedHealth represents health insurance and services.
• Finance: Berkshire Hathaway, a conglomerate with insurance at its core, sits just below the trillion-dollar mark. Banks include JPMorgan Chase, Bank of America, Morgan Stanley, HSBC and four large Chinese state-owned lenders. Visa and Mastercard represent payment networks.
• Consumer and retail: Walmart, Costco, Home Depot, Coca-Cola, Procter & Gamble and Philip Morris International.
• Energy and industrials: Exxon Mobil and Chevron, plus General Electric.

Where the Largest Companies Are Based

The United States dominates the ranking. Eight of the top 10 and 35 of the top 50 companies in the snapshot are American. The other 15 come from China (five companies, including Tencent and four banks), South Korea, Switzerland and the United Kingdom (two each), and Taiwan, Saudi Arabia and the Netherlands (one each).

Several countries with large economies, such as Japan, Germany and India, have no company in this top 50. A country’s company valuations depend on more than its GDP, including how much of its economy sits in listed companies, how its markets are valued and its exchange rate. Comparing a company’s market cap with a country’s GDP is also not like for like: one is the value of an asset, the other is a year’s output.

Other Ways to Rank the Biggest Companies

“Biggest” depends on the measure, and the leaders change with it.

By revenue, the list leans toward retailers, health care and energy, which often run on thinner margins or need more capital. Late-2026 compilations placed Amazon and Walmart at the top, followed by Apple, UnitedHealth Group and Saudi Aramco. Walmart and UnitedHealth bring in revenue on the scale of the tech giants but are valued at a fraction of them, because investors pay more per dollar of sales for higher margins and faster growth.

By number of employees, Walmart leads with roughly 2.1 million workers and Amazon follows with about 1.58 million as of late 2026. Companies such as BYD, Accenture and JD.com rank high on headcount despite sitting outside the top of the market cap list.

By continent, the market cap leaders look like this:

• North America: Apple
• Asia: TSMC
• Europe: ASML, ahead of Roche, Novartis, HSBC and AstraZeneca
• Oceania: BHP Group, the Australian miner, as of September 2025
• South America: Vista Energy, the Argentine oil producer, as of the same date
• Africa: AngloGold Ashanti, the gold miner, as of the same date

The last three are far smaller than the global leaders and do not appear in the top 50.

How the Leaders Have Changed Over Time

The industries at the top of the market cap rankings have shifted with the economy. Trading companies, railroads and steelmakers once held the largest valuations. In 1901, US Steel became the first company valued at more than $1 billion. Oil majors, industrial conglomerates and telecom companies took turns at the top through the 20th century. Today’s leaders are mostly software, internet and chip companies, several of which did not exist or were small a few decades ago.

Because cap-weighted index funds own companies in proportion to market value, a list dominated by a handful of tech firms means a large share of such a fund is concentrated in them.

The Bottom Line

Anyone reading a market cap ranking or holding a cap-weighted index fund should treat the order as a moving snapshot of investor valuation, not a measure of revenue, profit or safety. A handful of US technology and chip companies sit at the top, so those funds concentrate heavily in them. Comparing companies well requires looking past share price to share count, currency effects, debt and free float.