The 10 Largest Companies - Saturday, April 18

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Here is a short look at the 10 largest companies by market capitalization as of Saturday, April 18, 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 $4.90 trillion, with year-to-date gains of approximately +8.1%

2. Alphabet has a market cap of around $4.11 trillion, with year-to-date gains of approximately +9.2%

3. Apple has a market cap of around $3.97 trillion, with year-to-date gains of approximately -0.6%

4. Microsoft has a market cap of around $3.14 trillion, with year-to-date gains of approximately -12.6%

5. Amazon has a market cap of around $2.70 trillion, with year-to-date gains of approximately +8.6%

6. Broadcom has a market cap of around $1.93 trillion, with year-to-date gains of approximately +17.5%

7. Taiwan Semiconductor Manufacturing has a market cap of around $1.92 trillion, with year-to-date gains of approximately +21.9%

8. Meta has a market cap of around $1.74 trillion, with year-to-date gains of approximately +4.3%

9. Tesla has a market cap of around $1.50 trillion, with year-to-date gains of approximately -10.9%

10. Berkshire Hathaway has a market cap of around $1.02 trillion, with year-to-date gains of approximately -5.7%

In comparison, the S&P 500's year-to-date gain is approximately +4.1%.