The 10 Largest Companies - Saturday, March 21

Image Source: Markus Spiske on Unsplash

Here is a short look at the 10 largest companies by market capitalization as of Saturday, March 21, 2026. Additionally, I have included the percentages of their gains on a year-to-date basis. Let's dive into the numbers.

1. Nvidia has a market cap of around $4.20 trillion, with year-to-date gains of approximately -7.4%

2. Apple has a market cap of around $3.65 trillion, with year-to-date gains of approximately -8.8%

3. Alphabet has a market cap of around $3.62 trillion, with year-to-date gains of approximately -3.8%

4. Microsft has a market cap of around $2.84 trillion, with year-to-date gains of approximately -21.0%

5. Amazon has a market cap of around $2.21 trillion, with year-to-date gains of approximately -11.0%

6. Taiwan Semiconductor Manufacturing has a market cap of around $1.71 trillion, with year-to-date gains of approximately +8.3%

7. Meta has a market cap of around $1.50 trillion, with year-to-date gains of approximately -10.1%

8. Broadcom has a market cap of around $1.47 trillion, with year-to-date gains of approximately -10.3%

9. Tesla has a market cap of around $1.38 trillion, with year-to-date gains of approximately -18.2%

10. Berkshire Hathaway has a market cap of around $1.04 trillion, with year-to-date gains of approximately -4.5%

In comparison, the S&P 500's year-to-date gain is approximately -5.0%.