The instruments we track are a lens on where investor attention pools. As of 2026-09-01, the Headmars universe spans 2,178 companies across eight sectors. Counting names — not dollars — gives the cleanest read on breadth, so that's where we start.
Where the names cluster
Technology dominates with 594 companies, about 27% of the universe, anchored by the familiar megacaps: Apple, Microsoft, and NVIDIA, alongside AMD, Salesforce, and Intel. Industrials follow at 418 (~19%), a notably diverse bucket running from Honeywell and nVent to shipping (ZIM), eVTOL upstart Archer Aviation, and Asian listings like Xiamen Solex. Healthcare rounds out the top three at 363 names (~17%), spanning insurers (UnitedHealth), pharma giants (Johnson & Johnson, AbbVie), and long-tail biotech.
Together those three sectors make up roughly 63% of all tracked names — a concentration that mirrors where public-market listings and investor interest have historically pooled. Basic Materials is surprisingly deep at 299 companies (~14%), skewed toward miners and fertilizer producers. The remaining four — Consumer Cyclical (161), Financials (130), Energy (127), and Communication Services (86) — are thinner by count, even though each contains category-defining names: Amazon and Tesla; Berkshire, Visa, and JPMorgan; Exxon and Shell; Alphabet and Meta.
A caution on the cap totals
The reported sector market-cap totals deserve skepticism, and it's worth saying so plainly. Consumer Cyclical carries Amazon and Tesla yet reports the smallest total of any sector — an ordering that can't reflect reality and almost certainly signals missing or unmapped caps on individual tickers. Treat the aggregate figures as directional at best; the company counts are the sturdier signal.
The cross-listing tax
Raw counts also overstate distinct businesses, because the same company appears under multiple listings. Alphabet shows up as both GOOGL and GOOG; Tesla as TL0.F and TL0.DE; Novo Resources as NVO.TO and NVO.AX; Galantas Gold as GAL.V and GAL.L; Obsidian Energy as OBE and OBE.TO. These duplicates inflate the smaller, resource-heavy sectors in particular, where dual Canadian/Australian/UK listings are common. The effect nudges Basic Materials and Energy upward relative to their true issuer count.
What an investor might watch
Three things stand out. First, breadth concentration: with Technology alone at a quarter of names, universe-level moves will be heavily tech-inflected — diversification requires deliberately reaching into thinner sectors. Second, the long tail: Industrials and Healthcare pair blue chips with small, speculative names (Archer Aviation, GoodRx, micro-cap Asian pharma), so screening by size within a sector matters as much as the sector label. Third, data hygiene: the cap anomalies are a reminder to validate reference data before it feeds any allocation or ranking logic.
Breadth tells you where the crowd is standing. It doesn't tell you where the value is — but it's the first map worth drawing.