A Universe of 1,045 Companies — and One Giant
The tracked universe spans eight sectors and 1,045 companies, representing roughly $38.8 trillion in combined market capitalisation as of 16 June 2026. The distribution is anything but even.
Technology leads on every axis: 335 companies — nearly one in three names in the universe — and approximately $18.6 trillion in aggregate market cap, equal to about 47.9% of the entire tracked pool. Household anchors such as Apple, Microsoft, NVIDIA, AMD, Salesforce, and Intel sit inside this cohort. For any investor building a diversified watchlist from this universe, Technology is the unavoidable centre of gravity.
The Hidden Champions: Financials and Communication Services
Two sectors deserve a closer look because their market-cap weight is wildly disproportionate to their company count.
Communication Services tracks just 42 names — the smallest sector by roster — yet aggregates $5.25 trillion, placing it third in the universe by weight. That works out to roughly $124.9 billion per company on average, the highest density of any sector. Alphabet (twice, under GOOGL and GOOG), Meta, Netflix, Walt Disney, and Tencent are the names pulling that average up. Investors watching for macro-driven sentiment shifts — advertising cycles, streaming subscriber trends, AI-driven search disruption — will find enormous leverage inside a compact watchlist.
Financials carries 62 companies and $6.19 trillion, second only to Technology in aggregate weight. Berkshire Hathaway, JPMorgan, Visa, Mastercard, and Bank of America anchor the sector. The ratio of ~$99.9 billion per company again reflects extraordinary concentration: a handful of mega-caps doing most of the weight-lifting.
The Broad Middle: Healthcare and Industrials
Healthcare (201 companies, $3.29 trillion) and Industrials (200 companies, $3.03 trillion) are nearly identical in company count but sit well below the mega-cap sectors in aggregate weight. Healthcare's roster spans large-cap stalwarts (Johnson & Johnson, UnitedHealth, AbbVie) alongside smaller names like GoodRx and cross-listed Asian biotechs, signalling a deliberately wide net. Industrials shows similar breadth, mixing global shipping (ZIM), electrical infrastructure (Honeywell, nVent), and early-stage aerospace (Archer Aviation).
Consumer Cyclical (87 companies, $521 billion) looks undersized in aggregate until you note that Amazon and Tesla alone account for much of the category's weight — a reminder that a thin but high-conviction watchlist can still concentrate enormous capital.
Smaller Sectors, Specific Angles
Energy (55 companies, $1.80 trillion) spans U.S. independents, integrated majors like Exxon and Shell, and India's Reliance Industries, giving a genuinely global picture of fossil-fuel and transitional energy exposure. Basic Materials rounds out the universe at 63 companies and $157.7 billion — largely exploration-stage mining and fertiliser names, with heavy cross-listing across Canadian, Australian, and Hong Kong exchanges.
What to Watch
Three structural signals stand out from this composition:
- Concentration risk is real. Technology at ~47.9% of aggregate cap means a repricing of the AI-infrastructure trade would move the entire tracked universe materially.
- Communication Services is a quality filter. Forty-two companies, over $5 trillion — any name that makes it into that sector list is a proven mega-cap. It is a useful shortlist for investors who want scale without breadth.
- Healthcare and Industrials offer the most diversification surface. With 200+ companies each and per-name averages well below the universe median, these sectors are where stock-specific alpha — rather than sector beta — is most likely to show up.