Information technology companies are 36% of the S&P 500's market cap
Nvidia alone is worth more than the whole energy sector. In December 2008 information technology made up 14% of the index's value, counting today's members that were in it then.
Every S&P 500 company by market cap, week by week since December 2008
Today's members only. A faded bubble is a company that had not yet joined the index that week.
23 Oct 2026500 companies worth $69.54T. -0.5% on the week.
Bubble area shows market cap
| # | Company | Market cap |
|---|---|---|
| 1 | Nvidia NVDA | $5.08T |
| 2 | Apple AAPL | $5.07T |
| 3 | Alphabet GOOGL | $3.90T |
| 4 | Microsoft MSFT | $3.89T |
| 5 | Amazon AMZN | $2.68T |
| 6 | Meta Platforms META | $1.64T |
| 7 | Broadcom AVGO | $1.54T |
| 8 | Tesla TSLA | $1.47T |
| 9 | Berkshire Hathaway BRK-B | $1.16T |
| 10 | Eli Lilly LLY | $1.14T |
| 11 | Micron Technology MU | $993B |
| 12 | Walmart WMT | $951B |
| 13 | JPMorgan Chase JPM | $881B |
| 14 | Advanced Micro Devices AMD | $844B |
| 15 | Visa V | $762B |
| 16 | ExxonMobil XOM | $753B |
| 17 | Johnson & Johnson JNJ | $635B |
| 18 | Mastercard MA | $546B |
| 19 | AbbVie ABBV | $505B |
| 20 | Palantir Technologies PLTR | $473B |
| 21 | Chevron CVX | $461B |
| 22 | Costco COST | $445B |
| 23 | Intel INTC | $439B |
| 24 | Cisco CSCO | $420B |
| 25 | The Coca-Cola Company KO | $399B |
| 26 | Oracle ORCL | $381B |
| 27 | UnitedHealth Group UNH | $375B |
| 28 | Procter & Gamble PG | $373B |
| 29 | Merck & Co. MRK | $358B |
| 30 | Bank of America BAC | $354B |
| 31 | The Home Depot HD | $319B |
| 32 | Caterpillar CAT | $316B |
| 33 | Palo Alto Networks PANW | $311B |
| 34 | Philip Morris International PM | $311B |
| 35 | Applied Materials AMAT | $299B |
| 36 | GE Aerospace GE | $295B |
| 37 | Dell Technologies DELL | $290B |
| 38 | Lam Research LRCX | $287B |
| 39 | Morgan Stanley MS | $282B |
| 40 | Netflix NFLX | $270B |
| 41 | CrowdStrike CRWD | $264B |
| 42 | Texas Instruments TXN | $260B |
| 43 | RTX RTX | $258B |
| 44 | Goldman Sachs GS | $255B |
| 45 | Wells Fargo WFC | $249B |
| 46 | Thermo Fisher Scientific TMO | $249B |
| 47 | IBM IBM | $240B |
| 48 | Amgen AMGN | $237B |
| 49 | Linde LIN | $235B |
| 50 | Arista Networks ANET | $217B |
Download the weekly market caps as JSON, in billions of dollars, one list per company starting at its first week; the companies, sectors and weekly totals are in a second file.
Each sector's share of combined market cap since December 2008
Today's members only, each from the week it joined. Steps mark big companies joining, such as Berkshire in 2010 and Tesla in 2020.
Weekly, up to 23 Oct 2026
Week ending 23 Oct 2026, against December 2008
Each chart runs from December 2008 to October 2026 on the same scale as the first.
| Week ending | Industrials | Financials | Info tech | Health care | Consumer discretionary | Consumer staples | Utilities | Real estate | Materials | Energy | Communication |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 23 Oct 2026 | 7.7% | 12.4% | 36.4% | 9.6% | 9.6% | 5.4% | 1.9% | 1.7% | 1.6% | 3.7% | 10.0% |
| 26 Dec 2025 | 7.9% | 14.0% | 33.0% | 9.3% | 10.9% | 5.2% | 2.1% | 1.7% | 1.7% | 2.6% | 11.6% |
| 27 Dec 2024 | 8.0% | 14.0% | 31.6% | 9.8% | 11.8% | 6.0% | 2.2% | 1.9% | 1.6% | 2.9% | 10.2% |
| 29 Dec 2023 | 8.8% | 13.6% | 28.3% | 12.2% | 11.2% | 6.5% | 2.3% | 2.4% | 2.1% | 3.5% | 9.2% |
| 30 Dec 2022 | 9.2% | 14.9% | 22.2% | 15.4% | 9.4% | 8.2% | 3.1% | 2.7% | 2.3% | 4.8% | 7.6% |
| 31 Dec 2021 | 8.1% | 13.8% | 25.6% | 12.8% | 12.5% | 6.9% | 2.4% | 2.6% | 2.2% | 2.4% | 10.7% |
| 25 Dec 2020 | 8.8% | 14.6% | 23.2% | 12.6% | 12.7% | 7.7% | 2.7% | 2.2% | 2.2% | 2.1% | 11.1% |
| 27 Dec 2019 | 9.4% | 17.4% | 19.1% | 13.4% | 9.5% | 8.3% | 3.3% | 2.7% | 2.2% | 3.9% | 10.9% |
| 28 Dec 2018 | 9.5% | 17.3% | 16.8% | 14.9% | 9.7% | 8.7% | 3.3% | 2.8% | 2.0% | 4.8% | 10.2% |
| 29 Dec 2017 | 10.4% | 18.4% | 16.5% | 13.2% | 8.9% | 9.3% | 2.9% | 2.7% | 2.0% | 5.5% | 10.3% |
| 30 Dec 2016 | 10.8% | 18.4% | 14.9% | 13.1% | 8.2% | 10.1% | 3.0% | 2.7% | 1.9% | 6.5% | 10.3% |
| 25 Dec 2015 | 10.4% | 17.5% | 14.7% | 14.9% | 8.9% | 10.8% | 2.6% | 2.5% | 1.8% | 6.0% | 9.9% |
| 26 Dec 2014 | 11.1% | 17.9% | 15.9% | 14.1% | 7.5% | 10.5% | 2.9% | 2.3% | 2.1% | 7.6% | 8.1% |
| 27 Dec 2013 | 11.7% | 18.1% | 14.7% | 13.1% | 8.0% | 10.6% | 2.5% | 2.0% | 2.3% | 8.9% | 8.0% |
| 28 Dec 2012 | 10.8% | 16.9% | 16.1% | 12.3% | 7.3% | 11.8% | 3.1% | 2.5% | 2.6% | 9.7% | 6.8% |
| 30 Dec 2011 | 11.3% | 15.1% | 16.7% | 12.4% | 6.9% | 12.1% | 3.4% | 2.2% | 2.4% | 10.9% | 6.7% |
| 31 Dec 2010 | 12.1% | 17.9% | 16.7% | 11.5% | 6.7% | 11.3% | 2.9% | 1.8% | 1.8% | 10.7% | 6.5% |
| 25 Dec 2009 | 10.9% | 15.8% | 17.7% | 13.8% | 5.9% | 12.2% | 3.2% | 1.6% | 1.7% | 10.2% | 7.0% |
| 26 Dec 2008 | 11.9% | 12.7% | 14.4% | 15.1% | 5.0% | 14.7% | 3.7% | 1.2% | 1.6% | 12.5% | 7.2% |
Download the weekly sector shares as JSON (sectorShares, one list per sector in the order of sectors, in percent).
About the data
- Market cap is each week's last closing price times the shares outstanding the company had most recently reported, adjusted for stock splits. Companies with several share classes count every class, and partnership units that convert one for one into listed shares count too, as at Interactive Brokers, Blackstone and Charter. Shares a company or its benefit trust holds are not counted.
- After a stock merger the share count steps up at the next quarterly report, so a merged company can look too small for a few weeks and then jump in one week.
- Companies whose share history starts in mid-2009 use that first count for the weeks before, which can be a few percent off.
- Every share counts, not only the float-adjusted shares S&P uses to weight the index, so the shares here differ slightly from official index weights.
- Information technology is the GICS sector of that name. Alphabet, Meta and Netflix are in communication services, and Amazon and Tesla in consumer discretionary; with those five, technology companies make up 51%.
- A company appears from its first week of trading; before it joined the index its bubble is faded and the totals for members leave it out.
- Companies that left the index before today are not shown, so the early years understate what the index was worth then and the shares compare today's members only.
- Bubbles are grouped by today's sector. Open the company page for its weekly chart.