As of 29 October 2026 the tracked universe spans 2,444 companies across eight sectors. Two ways of ranking those sectors — by how many names they hold and by how much market value they carry — produce almost opposite leaderboards. That divergence is the story.
Breadth: Technology owns the headcount
Technology is the widest sector by a distance, with 654 companies — more than a quarter of the universe. The marquee names are exactly who you would expect: Apple, Microsoft, NVIDIA, AMD, Salesforce and Intel. Behind it sit Industrials (469), Healthcare (404) and Basic Materials (350). Together those four sectors account for roughly three-quarters of all tracked tickers, so the universe skews toward growth-and-production names rather than consumer or communication plays.
Weight: a different sector wins
Rank by aggregate market cap and the order inverts. Financials lead at about $159.5T (Berkshire, JPMorgan, Visa, Mastercard, Bank of America), followed by Energy at $106.6T (Exxon, Shell, Reliance) and Basic Materials at $47.2T. Technology — the headcount champion — lands fourth at $23.1T. Communication Services ($5.3T) and Healthcare ($3.7T) are mid-pack, and Consumer Cyclical sits last at just $0.58T despite containing Amazon and Tesla.
The per-name math sharpens the contrast. Financials average roughly $1.1T of cap per company and Energy about $725B, versus around $35B for Technology and a startling ~$3B for Consumer Cyclical. A handful of financial and energy giants carry enormous weight; Technology's strength is in numbers.
Read the data with a caveat
Two things deserve caution. First, cross-listings inflate the counts: Tesla appears as both TL0.F and TL0.DE, Novo Resources as NVO.TO and NVO.AX, Galantas Gold as GAL.V and GAL.L, and Obsidian Energy as OBE and OBE.TO. Some portion of the headcount is the same company listed on multiple venues.
Second, the Consumer Cyclical total is internally hard to square — $0.58T aggregate while holding Amazon, Tesla and Alibaba implies the cap figures are incomplete or unevenly sourced across venues and currencies. Treat the market-cap totals as directional, not precise, and lean on the sector ordering rather than the absolute dollar amounts.
What an investor might watch
- Technology concentration. With 654 names anchored by a few trillion-dollar leaders, breadth here masks top-heavy exposure. Moves in Apple, Microsoft or NVIDIA ripple across the whole universe.
- The heavyweight sectors. Financials and Energy carry outsized aggregate weight on comparatively few tickers, so single-name shocks there matter disproportionately.
- The thin tails. Communication Services (95 names) and the under-counted Consumer Cyclical figure are worth monitoring as coverage expands — gaps there are where the universe is least representative today.
The headline: this is a tech-heavy universe by population but a financials-and-energy universe by weight. Knowing which lens you are using changes what "diversified" means.