Technology: Breadth and Scale
With 474 tracked companies and a combined market capitalisation of roughly $21.2 trillion, Technology is the single most represented sector by roster size. The sample names alone span the full stack of modern computing: Apple and Microsoft anchor large-cap consumer and enterprise software, NVIDIA and AMD define the AI-era silicon race, Salesforce represents SaaS at scale, and Intel marks the legacy side of the semiconductor cycle. For any investor building a systematic view of the sector, this breadth means both diversification and noise — distinguishing secular AI infrastructure plays from mature hardware incumbents matters more than ever.
Financials and Basic Materials: The Market-Cap Anchors
The two sectors with the highest tracked aggregate market capitalisation may surprise at first glance. Financials (89 companies, ~$98.7 trillion aggregate) and Basic Materials (156 companies, ~$44.2 trillion aggregate) dwarf Technology in raw capitalisation weight, reflecting the enormous balance-sheet scale of names like JPMorgan, Berkshire Hathaway, Visa, and Mastercard. Basic Materials includes a notably diverse cross-listing picture — the same underlying assets (Galantas Gold, Obsidian-adjacent names, lithium plays) appear across the Toronto, Australian, and Hong Kong exchanges, which investors should account for when sizing exposure.
Industrials and Communication Services: Comparable Scale, Different Stories
Industrials (323 companies, ~$5.3 trillion) and Communication Services (59 companies, ~$5.3 trillion) carry nearly identical aggregate market caps from very different roster sizes. Industrials includes the widest geographic spread in the universe — Chinese A-shares like Xiamen Solex sit alongside Honeywell, ZIM Integrated Shipping, and Archer Aviation, the electric air-taxi name that represents the sector's most speculative edge. Communication Services, by contrast, concentrates its weight in a handful of mega-caps: Alphabet (tracked under both GOOGL and GOOG), Meta, Netflix, Disney, and Tencent. Quality is high and the count is low, which makes sector-level moves easy to attribute.
Healthcare and Energy: Steady Presence
Healthcare (266 companies, ~$3.5 trillion) reflects the familiar split between US managed-care giants (UnitedHealth, AbbVie, J&J), consumer health tech (GoodRx), and speculative biotech from Korea and China. Energy (85 companies, ~$1.8 trillion) is anchored by integrated majors — ExxonMobil, Shell, Reliance Industries — alongside smaller Canadian producers and US natural-gas names like Antero Resources.
Consumer Cyclical: A Roster That Punches Above Its Weight
At ~$536 billion in tracked aggregate, Consumer Cyclical is the smallest sector by market cap despite including some of the most widely watched names in public markets: Amazon, Tesla (which also appears under Frankfurt tickers TL0.F and TL0.DE), Home Depot, and Alibaba. This suggests the tracked subset here leans toward the platform's active users rather than exhaustive coverage — an important caveat when drawing sector-weight conclusions.
What to Watch
- AI infrastructure concentration: NVDA, AMD, MSFT, and GOOGL together represent an outsized share of Technology and Communication Services cap. Any rotation out of AI-adjacent names ripples widely.
- Cross-listed Basic Materials names: Duplicate exchange listings inflate company counts and can distort cap-weighted views; normalise before comparing.
- Healthcare biotech tail: The long tail of Korean and Chinese biotech names adds emerging-market volatility to what otherwise reads as a defensive sector.
- Consumer Cyclical under-coverage: If Amazon and Tesla are present but aggregate cap is low, the sector likely needs fuller population before it can be used for meaningful sector-rotation signals.