The Magnificent Seven's Market Cap vs. the S&P 500

The “Magnificent Seven” are a group of seven of the largest and most influential technology-focused companies. This group includes:

Data as of Feb 15, 2026. Showing 7 of 7 tickers.

All of these companies have experienced rapid growth over the last decade, and they all currently have a market cap of more than $1 trillion. As they’ve grown, their combined value has made up a larger – and some would say concerning – portion of the S&P 500.

Read on for a detailed look at the Magnificent Seven stocks as a percentage of the S&P 500, their returns over the years, and what their success means for investors.

How much of the S&P 500 do the Magnificent Seven account for?

The Magnificent Seven account for 34.3% of the S&P 500 as of Feb. 2, 2026. That’s nearly three times as much as in 2016, when they made up 12.5% of the S&P 500.

The S&P 500 performed very well from 2016 through 2025, with an overall return of 234.9%. However, it doesn’t come close to the Magnificent Seven, which had a staggering 875.5% combined return over that same time span.

It’s largely been a bull market over the last decade, which could help explain why this group of growth stocks has been so successful. From 2016 through 2025:

• The Magnificent Seven delivered higher returns than the S&P 500 in eight out of 10 years.
• The biggest difference was in 2020, when the Magnificent Seven had an annual return more than four times higher than the S&P 500 (65.8% to 16.3%).
• The only year in which the S&P 500 performed notably better was 2022, when it declined 19.4%, while the Magnificent Seven fell 41.3%. The S&P 500 also had a slight edge in 2016 (9.5% to 8.8%).

Because it’s more diversified and not reliant on a single sector, the S&P 500 tends to weather stock market volatility better. The Magnificent Seven generally aren’t as resilient during periods of economic uncertainty, as evidenced by their greater losses during down markets, most notably in 2022. However, since then, artificial intelligence (AI) has driven growth in the tech sector, helping the Magnificent Seven outpace the S&P 500.

Magnificent Seven vs. S&P 500 in 2026

Over the first month of 2026, the S&P 500 gained 1.9%. The Magnificent Seven gained 0.8%, but returns vary quite a bit among the group. Alphabet leads the pack with a 9.8% return, while Microsoft has fared the worst, falling 12.5%.

It has been a strong start to the year for “the other 493,” a term for all the other companies in the S&P 500 index. However, the Magnificent Seven could rebound. We’re still early in the year, and volatility is normal, considering this is a group of just seven stocks.

Each company’s contribution to the Magnificent Seven has changed since 2015, with some growing more significantly than others.

• Nvidia has been the top performer after adding over $4 trillion to its market cap since 2016. It went from being the smallest contributor to the Magnificent Seven, at just 0.8% of the combined value, to the largest at 20.8%.
• Apple, which spent much of the last decade leading the largest companies by market cap, dropped from first to third.
• Alphabet, the holding company that owns Google, dropped from second to as low as fifth, but recently bounced back to second.
• Microsoft has dropped from third to fourth.
• Amazon, Meta, and Tesla have each dropped by one position in the hierarchy to fifth, sixth, and seventh, respectively.

What the Magnificent Seven dominating the S&P means for investors

Investors who buy S&P 500 index funds sometimes worry about how top-heavy the index is – a logical concern given that seven companies contribute more than a third of the S&P 500’s value.

These companies account for such a large share of the S&P 500 due to their exceptional performance in recent years. Anyone invested in the S&P 500 has shared in that success, so there are advantages to the Magnificent Seven’s dominance. However, there are also a few notable causes for concern:

• The group is dominated by tech stocks and stocks that are more volatile than the S&P 500 as a whole.
• As a result, the Magnificent Seven are more heavily impacted by bear markets and downturns in the tech sector. Either of those situations will likely drag down the performance of the S&P 500 compared to more equally weighted indexes.
• Growth for the Magnificent Seven could slow due to the size of these companies. Case in point, although the group as a whole outperformed the broader market in 2025, only two of the seven (Alphabet and Nvidia) surpassed the S&P 500’s return.

It’s possible that the Magnificent Seven will continue their success. Even if some of them fall off, other stocks in the S&P 500 will take their place.

S&P 500 index funds remain a simple and effective way to invest in stocks. If you’d like to diversify your portfolio more, you could opt for a different index fund, a combination of funds, or a self-managed portfolio of companies you select. As the success of the Magnificent Seven shows, it is possible to get market-beating returns by picking quality stocks.

About the Author

Lyle Daly is a contributing Motley Fool stock market analyst covering information technology and cryptocurrency. Lyle has been a contributor at the financial services company since 2018. His work has been featured on USA Today, Yahoo Finance, MSN, Fox Business, and Nasdaq. Before joining The Motley Fool, he wrote for financial brands including Intuit.

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