The shape of the universe
Across the eight sectors we track, 2,277 companies make up the current universe, and the distribution is anything but even. Technology alone accounts for 615 names — roughly 27% of everything tracked — led by the usual megacaps: Apple, Microsoft and NVIDIA, alongside AMD, Salesforce and Intel. Add Industrials (437) and Healthcare (377), and three sectors cover nearly 63% of the roster. Financials (137), Energy (137) and Communication Services (89) form the smaller tail.
The industrial and materials middle
Industrials is the quiet surprise in second place by count. The sample spans household names like Honeywell and nVent to speculative newcomers such as Archer Aviation, and reaches well beyond the US — Xiamen Solex and Taiwan's Arch Meter sit next to Israel-listed shipper ZIM. Basic Materials is nearly as broad at 320 names, skewed toward miners and fertiliser producers: Argentina Lithium, Galantas Gold, China XLX Fertiliser. It is the most globally scattered corner of the book, and the one most exposed to commodity cycles.
Weight versus breadth
Here the data turns awkward. Company count and reported market cap disagree sharply. By the totals supplied, Financials and Energy dwarf Technology, while Consumer Cyclical — home to Amazon and Tesla — reports the smallest aggregate of all eight sectors. That ordering is hard to reconcile: a bucket containing two of the world's largest companies should not trail every other sector, and a Financials total running into the hundreds of trillions strains belief. Treat the aggregate market-cap figures as provisional. The count-based composition is the sturdier signal here; the cap totals look like they need a data-quality pass before anyone leans on them.
Cross-listings inflate the count
A recurring pattern worth flagging: many names appear more than once. Tesla shows up as both TL0.F and TL0.DE, Novo Resources as NVO.TO and NVO.AX, Galantas as GAL.V and GAL.L, and Alphabet as GOOGL and GOOG. Cross-listings pad the raw counts, so the "615 technology names" figure overstates the number of distinct businesses. Deduplicating by issuer would tighten every sector total and sharpen the concentration picture.
What an investor might watch
Three things. First, the technology tilt means the universe's fortunes ride heavily on a handful of megacaps — Apple, Microsoft, NVIDIA — so real breadth is thinner than 615 suggests. Second, the materials and energy tail (Exxon, Shell, Reliance; lithium and gold juniors) offers genuine diversification but carries commodity and geopolitical risk. Third, emerging Industrials names like Archer Aviation hint at where speculative capital may be rotating. Until the market-cap aggregates are reconciled, weight your reading toward the counts and the names, not the totals.