The shape of the universe
As of 2026-07-25, the Headmars tracked universe spans 1,728 companies across eight sectors. The distribution is anything but even. By company count, three sectors carry the bulk of coverage:
- Technology — 508 companies (~29% of the universe)
- Industrials — 344 companies (~20%)
- Healthcare — 296 companies (~17%)
Together these three account for roughly two-thirds of every name we track. The tail thins quickly from there: Basic Materials (185), Consumer Cyclical (131), Financials (99), Energy (95), and Communication Services (70).
Technology sets the tone
The Technology bloc reads like the megacap roster investors already know — Apple, Microsoft, and NVIDIA anchor it, with AMD, Salesforce, and Intel filling out the sample. With more than 500 constituents, this is also the deepest bench in the universe, which means broad exposure to semiconductors, software, and hardware all sitting under one sector label. For anyone building a portfolio here, concentration risk is the thing to watch: a sector this crowded can still be dominated by a handful of names.
Global reach in the long tail
What stands out beyond the familiar US megacaps is how international the coverage runs. The sample names alone reach across exchanges — Shanghai (603992.SS), Taipei (4588.TW), Hong Kong (9988.HK, 0700.HK), Toronto, Sydney, London, and Frankfurt. Industrials in particular mixes household names like Honeywell with emerging plays such as Archer Aviation and regional manufacturers. Basic Materials leans heavily toward miners and fertilizer producers, while Energy blends supermajors (Exxon, Shell, Reliance) with smaller producers like Obsidian and Antero. This breadth is a genuine strength for anyone wanting exposure past the S&P 500 core.
A note on the market-cap figures
Honesty first: the reported total market-cap figures do not pass a sanity check and should be treated with caution. Financials is listed at roughly $159 trillion and Energy near $106 trillion — numbers that exceed any plausible real-world aggregate — while Consumer Cyclical shows just $547 billion despite containing Amazon and Tesla. These almost certainly reflect currency-conversion or unit errors in the underlying feed (many constituents are cross-listed on foreign exchanges), not real capitalization. Until that pipeline is reconciled, company count is the more trustworthy lens for reading sector weight.
What an investor might watch
Three things stand out:
- Tech concentration. With nearly a third of the universe in one sector, watch whether breadth or a few leaders are driving returns.
- International cross-listings. Duplicate tickers for the same issuer (Tesla appears as
TSLA,TL0.F, andTL0.DE; Alphabet asGOOGLandGOOG) inflate raw counts — dedupe before drawing conclusions about true breadth. - Underrepresented defensives. Financials and Communication Services sit at the thin end. If you want balance against a tech-heavy tilt, those are the sectors where coverage is currently lightest.
The headline takeaway: this is a tech-forward, globally diversified universe with a deep long tail — powerful for discovery, but one whose valuation data still needs a cleanup pass before it can be trusted.