Any portfolio platform is shaped by what it chooses to watch. As of 13 September 2026, the Headmars universe spans 2,281 companies across eight sectors — a snapshot worth reading closely, because the breadth of coverage tells you as much as any single quote.
Technology leads on breadth
By company count, Technology is the clear heavyweight at 616 names — roughly 27% of the entire universe. The sample reads like the sector's spine: AAPL, MSFT, and NVDA anchor the mega-caps, while AMD and a still-present INTC round out the semiconductor story. That single sector outnumbers Consumer Cyclical, Financials, Energy, and Communication Services combined.
Industrials follow with 439 companies (about 19%), and here the coverage turns genuinely global: alongside Honeywell (HON) sit Chinese small-caps like Xiamen Solex, Taiwan's Arch Meter, shipping name ZIM, and speculative eVTOL play Archer Aviation (ACHR). Healthcare (377) and Basic Materials (321) fill out the top four, which together account for nearly 77% of all tracked names.
A long, international tail
The smaller sectors are where the universe shows its reach rather than its concentration. Basic Materials leans heavily toward miners and fertiliser producers — lithium (LILIF), gold (Galantas), and China XLX Fert — while Energy blends supermajors (XOM, SHEL.L, Reliance) with North American E&P names like Antero and Obsidian. Communication Services is the smallest cohort at 89, yet it holds some of the market's most-watched tickers: GOOGL, META, NFLX, and Tencent.
Where count and market cap diverge
The most instructive tension in this data is between headcount and reported market capitalisation. Financials (137 companies) and Energy (137) show the largest total-cap figures, dwarfing Technology's total despite Technology having more than four times the names. That divergence deserves scepticism rather than a headline: Consumer Cyclical carries the smallest reported total cap of any sector, yet its roster includes Amazon and Tesla — companies that alone should overwhelm that figure. The market-cap totals here are internally inconsistent and should be treated as unreliable until reconciled.
The sample names hint at why. Cross-listings appear repeatedly — Tesla as both TL0.F and TL0.DE, Alphabet as GOOGL and GOOG, Novo Resources across Toronto and Sydney, Galantas across Canada and London. Duplicate listings inflate counts and can double-count or misattribute market value.
What an investor might watch
First, treat company count as the more trustworthy breadth signal for now, and flag the market-cap aggregation for review. Second, note that the universe's tilt toward Technology and Industrials means platform-wide sentiment will track those sectors disproportionately. Third, the dense international small-cap tail — Chinese, Taiwanese, Korean, and Canadian names — is an opportunity for coverage differentiation, provided the cross-listing duplicates are deduplicated first.