Technology: The Undisputed Anchor
With 452 companies and an aggregate market cap of approximately $21.1 trillion, Technology is the largest sector by both metrics in the tracked universe — and it is not close. Apple, Microsoft, NVIDIA, AMD, Salesforce, and Intel anchor the list, spanning consumer hardware, enterprise cloud, and AI silicon. For any portfolio tilted toward secular growth, this sector sets the tone. It also carries the most concentrated event risk: a single regulatory action on chip exports, or a margin-compression quarter across semis, shows up in hundreds of tracked positions simultaneously.
Industrials and Healthcare: The Broad Middle
Industrials (304 companies, ~$3.4T aggregate cap) and Healthcare (247 companies, ~$3.5T) form the second tier by company count — and both reveal just how international the tracked universe is. Industrials ranges from Honeywell and nVent Electric to a Chinese high-tech manufacturer listed in Shanghai (603992.SS), a Taiwanese meter company (4588.TW), and emerging-mobility name Archer Aviation. Healthcare pairs J&J, UnitedHealth, and AbbVie with a South Korean biotech (PenetriumBio) and a Chinese pharmaceutical name (603207.SS). The breadth here is genuine; FX and market-structure risk come along for the ride.
Financials and Basic Materials: The Cap Outliers
The two most striking data points in the universe are Financials ($98.7T aggregate cap across 87 companies) and Basic Materials ($44.2T across 133). Both figures dwarf Technology in raw aggregate despite far fewer names, which underscores how much weight mega-caps like Berkshire Hathaway, JPMorgan, Visa, and Mastercard carry. Investors watching macro themes — interest-rate cycles, credit spreads, commodity supercycles — will find outsized leverage in these two sectors relative to their company counts. Rate-environment shifts will surface in Financials first and fastest.
Communication Services: Fewer Names, Maximum Reach
With just 56 companies, Communication Services is the smallest sector by count, yet it posts roughly $5.2T in aggregate cap — third-largest in the universe. Alphabet (listed as both GOOGL and GOOG), Meta, Netflix, Walt Disney, and Tencent are platforms that collectively touch billions of users daily. The concentration risk is straightforward: a handful of names drive nearly all of the sector's weight, so earnings surprises from any single giant ripple across the whole group.
Consumer Cyclical and Energy: Range and Reach
Consumer Cyclical (117 companies, ~$535B aggregate cap) features Amazon, Tesla, Home Depot, and Alibaba alongside a notable cross-listing pattern — Tesla appears under both TL0.F (Frankfurt) and TL0.DE, a reminder that de-duplicating cross-listed exposure is a real portfolio hygiene task. Energy (80 companies, ~$1.8T) covers Exxon and Shell on the Western majors side, Reliance Industries for Indian market exposure, and smaller producers like Obsidian Energy and Antero Resources for commodity-beta plays.
What to Watch
Four themes emerge from this composition:
- AI and semis concentration: NVDA, AMD, and INTC in a single sector mean a sector-level event — export controls, margin compression, capacity gluts — hits a wide swath of tracked positions.
- Financials as rate barometer: The sector's outsized aggregate cap makes it the clearest signal for rate-environment shifts in the universe.
- Cross-listing noise: Tesla, Alphabet, Obsidian Energy, and Galantas Gold all appear under multiple tickers across exchanges. Aggregate-cap and weighting calculations need de-duplication logic to avoid double-counting.
- International tail risk in Industrials and Healthcare: Non-US names introduce FX moves and local regulatory decisions that pure US-focused screening will miss entirely.
The universe's span — NYSE, NASDAQ, HKEX, Shanghai, Taipei, Bombay, Frankfurt, and beyond — is one of the platform's genuine strengths. But global breadth means global exposure, and knowing which sectors carry the most concentration in a handful of names is the first step to managing it.