Nvidia became the first company in history to surpass $4 trillion in market capitalization in July 2025. As of March 24, 2026, it sits at $4.43 trillion — $540 billion ahead of second-place Apple. This post covers the 20 largest companies in the world by market cap, five-year returns, sector concentration, and the financial data behind Nvidia’s rise.
Largest Company in the World: Key Statistics
- $4.43T — Nvidia’s market cap as of March 24, 2026, the highest ever recorded for any public company.
- 12 companies now hold market caps above $1 trillion, up from just two — Apple and Microsoft — in early 2020.
- 22.6% of the $147.6 trillion global equity market is held by the top 20 companies alone.
- 114% — Nvidia’s revenue growth in fiscal year 2025, reaching $130.5 billion in annual revenue.
- $650B — projected combined AI infrastructure spending by Big Tech firms in 2026.
Top 20 Largest Companies in the World by Market Cap
All five of the top-ranked companies have crossed $2 trillion in market capitalization. Amazon leads on revenue at $716.9 billion annually, yet ranks fifth by market cap — a reflection of how investors are pricing AI-driven growth potential over current earnings.
Nvidia’s price-to-revenue multiple sits at roughly 20.5x. Amazon’s is approximately 3.1x. That gap captures the market’s view of where high-margin returns are concentrated.
Source: The Motley Fool
| Rank | Company | Market Cap | TTM Revenue | Sector |
|---|---|---|---|---|
| 1 | Nvidia (NVDA) | $4.43T | $215.9B | Information Technology |
| 2 | Apple (AAPL) | $3.89T | $435.6B | Information Technology |
| 3 | Alphabet (GOOGL) | $3.77T | $402.8B | Communication Services |
| 4 | Microsoft (MSFT) | $2.96T | $305.5B | Information Technology |
| 5 | Amazon (AMZN) | $2.24T | $716.9B | Consumer Discretionary |
| 6 | TSMC (TSM) | $1.91T | $120.7B | Information Technology |
| 7 | Saudi Aramco | $1.69T | $448.6B | Energy |
| 8 | Meta Platforms (META) | $1.65T | $201.0B | Communication Services |
| 9 | Broadcom (AVGO) | $1.51T | $63.9B | Information Technology |
| 10 | Tesla (TSLA) | $1.51T | $94.8B | Consumer Discretionary |
| 11 | Berkshire Hathaway | $1.09T | $400.5B | Financials |
| 12 | Walmart (WMT) | $1.01T | $713.2B | Consumer Staples |
| 13 | Samsung Electronics | $1.00T | $229.6B | Information Technology |
| 14 | Eli Lilly (LLY) | $0.91T | $65.2B | Health Care |
| 15 | JPMorgan Chase (JPM) | $0.80T | $181.8B | Financials |
| 16 | ExxonMobil (XOM) | $0.64T | $323.9B | Energy |
| 17 | Visa (V) | $0.61T | $41.4B | Financials |
| 18 | Johnson & Johnson (JNJ) | $0.60T | $94.2B | Health Care |
| 19 | Tencent (TCEHY) | $0.59T | $102.3B | Communication Services |
| 20 | ASML (ASML) | $0.56T | $38.2B | Information Technology |
Source: The Motley Fool — data as of March 24, 2026. TTM = trailing twelve months.
How Did Nvidia Become the Largest Company in the World?
Three years ago, Nvidia was worth roughly $300 billion. Its market cap crossed $2 trillion in March 2024, hit $3 trillion in June 2024, and exceeded $4 trillion in July 2025 — a threshold no company had previously reached.
The driver was data center revenue. Nvidia’s full-year data center revenue reached $115.2 billion in FY2025, up 142% year-over-year. By the third quarter of FY2026 (ending October 2025), quarterly data center revenue alone reached $51.2 billion — more than the entire company earned in a full year just two years prior.
Source: Nvidia Investor Relations
Its primary customers — AWS, Google Cloud, Microsoft Azure, Oracle, and OpenAI — are purchasing Blackwell-architecture GPUs for AI training and inference. That concentration of demand from a small number of high-spending cloud operators explains both the revenue scale and the consistency of Nvidia’s growth rate.
Five-Year Returns for the Largest Companies in the World
Nvidia’s five-year annualized return of 66.82% is roughly 20 percentage points ahead of second-place Broadcom at 46.73%. Across the top 10 companies, 12 of the top 20 overall outperformed the S&P 500 over the same period.
Amazon’s return of 6.31% is the weakest in the group, reflecting heavy capital spending on AWS infrastructure and sustained margin pressure across its retail operations.
Source: The Motley Fool — five-year annualized returns as of March 24, 2026.
| Company | 5-Year Annualized Return | Market Cap |
|---|---|---|
| Nvidia | 66.82% | $4.43T |
| Broadcom | 46.73% | $1.51T |
| Alphabet | 25.26% | $3.77T |
| TSMC | 24.36% | $1.91T |
| Meta Platforms | 20.27% | $1.65T |
| Apple | 16.85% | $3.89T |
| Berkshire Hathaway | 15.73% | $1.09T |
| Tesla | 12.32% | $1.51T |
| Microsoft | 11.07% | $2.96T |
| Amazon | 6.31% | $2.24T |
Source: The Motley Fool
Largest Companies in the World by Sector
Information Technology companies hold 7 of the 20 slots but account for 48.7% of the combined top-20 market cap — nearly equal to all other sectors together. Communication Services (Alphabet, Meta, Tencent) is second at 18%.
The two energy companies on the list — Saudi Aramco and ExxonMobil — together hold $2.33 trillion. Saudi Aramco’s five-year annualized return is -7.9%, while ExxonMobil’s 22.9% return was driven primarily by post-pandemic oil price recovery.
Source: The Motley Fool; calculations based on top 20 companies as of March 24, 2026.
| Sector | Companies | Combined Market Cap | % of Top 20 |
|---|---|---|---|
| Information Technology | 7 | ~$16.26T | 48.7% |
| Communication Services | 3 | ~$6.01T | 18.0% |
| Consumer Discretionary | 2 | ~$3.75T | 11.2% |
| Financials | 3 | ~$2.50T | 7.5% |
| Energy | 2 | ~$2.33T | 7.0% |
| Health Care | 2 | ~$1.51T | 4.5% |
| Consumer Staples | 1 | ~$1.01T | 3.0% |
Source: The Motley Fool
AI Spending Among the World’s Largest Companies
Big Tech firms — Alphabet, Amazon, Meta, Microsoft, Apple, Nvidia, and Tesla — are projected to spend $650 billion on AI infrastructure collectively in 2026. That capital expenditure cycle is the primary reason premium valuations persist across the top cluster of companies.
TSMC committed to investing $165 billion in US fabrication plants, advanced packaging, and R&D as of early 2026 — a direct response to demand from those same companies for advanced chip capacity.
Meta generates approximately 98% of its $201 billion in annual revenue from advertising. Visa processed $14 trillion in payments volume in fiscal year 2025. JPMorgan Chase managed $4.8 trillion in assets — the most of any US bank. These figures show the breadth of industries represented at the top of the global market cap rankings.
FAQ
What is the largest company in the world by market cap in 2026?
Nvidia is the largest company in the world with a market cap of $4.43 trillion as of March 24, 2026 — the first company in history to exceed $4 trillion.
How many companies have a market cap above $1 trillion?
As of March 2026, 12 companies hold market caps above $1 trillion. In early 2020, only Apple and Microsoft had crossed that threshold.
Which company has the highest revenue in the world?
Amazon leads the top 20 with $716.9 billion in trailing twelve-month revenue, followed by Walmart at $713.2 billion — yet both rank outside the top four by market cap.
How did Nvidia grow so fast?
Nvidia’s data center revenue grew 142% year-over-year in FY2025, reaching $115.2 billion. Cloud companies like AWS, Google, and Microsoft are its primary customers, buying GPUs for AI workloads.
What percentage of the global stock market do the top 20 companies represent?
The top 20 companies by market cap account for approximately 22.6% of the $147.6 trillion total global equity market recorded in October 2025.
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