Technology: The Gravitational Centre
With 386 companies and roughly $18.9 trillion in aggregate market cap, Technology is the largest sector in the tracked universe by both count and value — representing approximately 38% of the total across all eight sectors. Apple, Microsoft, and NVIDIA anchor the cohort; AMD, Salesforce, and Intel round out a roster spanning semiconductors, cloud platforms, enterprise software, and consumer hardware. Investors here should watch AI infrastructure spending cycles, semiconductor supply chain dynamics, and enterprise software renewal rates as the second half of 2026 unfolds.
Financials: Fewer Names, Enormous Weight
What Financials lacks in breadth — just 71 companies, the second-smallest cohort — it more than compensates for in concentration. At roughly $16.1 trillion combined, it is the second-largest sector by value, implying an average market capitalisation of over $220 billion per company. Berkshire Hathaway, JPMorgan Chase, Visa, Mastercard, and Bank of America dominate the sample, reflecting a roster skewed toward the world's most systemically important institutions. Rate decisions and credit-cycle dynamics will move this cluster in near lock-step, making it a reliable macro barometer.
Communication Services: Punching Above Its Weight
With only 48 tracked names — the smallest count of any sector — Communication Services still assembles $5.2 trillion in aggregate market cap, placing it third overall. Alphabet (represented as both GOOGL and GOOG), Meta, Netflix, Walt Disney, and Tencent drive that density. The sector blends digital advertising, streaming, social media, and gaming under one umbrella, making it unusually sensitive to ad-market cycles and content-licensing shifts. Any meaningful rotation in digital ad spend tends to surface here first.
Healthcare and Industrials: Scale Through Breadth
Healthcare (219 companies, ~$3.3T) and Industrials (267 companies, ~$3.3T) are near-identical in aggregate value but take very different routes to get there. Healthcare clusters around large-cap stalwarts — Johnson & Johnson, UnitedHealth, AbbVie — alongside emerging biotech from South Korea and China, giving the sector a wide risk spectrum from blue-chip defensives to early-stage drug development.
Industrials is the most geographically diverse group in the entire universe, mixing US conglomerates (Honeywell), global shipping (ZIM), electric aviation (Archer Aviation), and Asian specialty manufacturers from Taiwan and China. That breadth makes it a useful leading indicator for global capex cycles and trade volumes.
Energy and Consumer Cyclical: High Visibility, Smaller Footprints
Energy's 70 companies total roughly $1.8 trillion, anchored by Exxon Mobil, Shell, and Reliance Industries, with a long tail of smaller exploration names like Obsidian Energy and Antero Resources. The spread from supermajors to micro-caps means the sector captures both macro oil-price exposure and speculative resource plays in a single view.
Consumer Cyclical (104 companies, ~$534 billion) hosts some of the most-watched names in markets — Amazon, Tesla, Home Depot, Alibaba — yet its aggregate figure is comparatively modest, reflecting a wide distribution between a handful of mega-caps and a larger set of smaller retail and auto-adjacent names.
Basic Materials: The Quiet Tail
At roughly $321 billion across 87 companies, Basic Materials is the smallest sector by market cap. The sample skews toward small-cap resource explorers — gold miners, lithium developers, fertiliser producers — spread across Hong Kong, Canada, Australia, and the UK. For investors, this is where commodity-cycle bets and critical-minerals theses tend to live, and where individual position sizing matters most given the thin average market cap per name.