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Here is a short look at the 10 largest companies by market capitalization as of Saturday, Dec. 20, 2025. Additionally, I have included the percentages of their gains on a year-to-date basis. Let's dive into the numbers.

1. Nvidia (NVDA) has a market cap of around $4.40 trillion, with year-to-date gains of approximately +34.8%
2. Apple (AAPL) has a market cap of around $4.04 trillion, with year-to-date gains of approximately +9.3%
3. Alphabet (GOOG) has a market cap of around $3.71 trillion, with year-to-date gains of approximately +62.3%
4. Microsoft (MSFT) has a market cap of around $3.61 trillion, with year-to-date gains of approximately +15.3%
5. Amazon (AMZN) has a market cap of around $2.43 trillion, with year-to-date gains of approximately +3.6%
6. Meta (META) has a market cap of around $1.66 trillion, with year-to-date gains of approximately +12.5%
7. Broadcom (AVGO) has a market cap of around $1.61 trillion, with year-to-date gains of approximately +46.8%
8. Tesla (TSLA) has a market cap of around $1.60 trillion, with year-to-date gains of approximately +19.2%
9. Taiwan Semiconductor Manufacturing (TSM) has a market cap of around $1.50 trillion, with year-to-date gains of approximately +46.3%
10. Berkshire Hathaway (BRK-B) has a market cap of around $1.07 trillion, with year-to-date gains of approximately +9.5%

In comparison, the S&P 500's year-to-date gain is approximately +16.2%.

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