Mega-Cap IndexBeta
The largest U.S. companies by full-company market capitalization — the top of the 45% cumulative-coverage cut.
Beta — methodology in initial calibration. The size series is tracking-only and the methodology calibration parameters are still being refined; constituent membership and weights may change between reconstitutions.
Index Characteristics
NAV History
Sector Weights
Yield & Valuation
Weighted trailing 12-month dividend yield and weighted trailing 12-month P/E (harmonic mean via net income ÷ market cap). Names with stale or missing price, dividend, or earnings data — and negative-earnings names for P/E — are excluded from the figure and reported as coverage instead.
Top 10 Constituents by Weight
| Ticker | Market Cap | Weight |
|---|
Methodology
The Size Indices segment the U.S. domestic operating-company universe into five cumulative-coverage tiers (45% / 85% / 95% / 99%) of full-company market capitalization, weighted by float-adjusted cap within each tier. Eligibility requires a liquidity gate (a minimum average daily traded value, with trading on at least 95% of sessions) and 60 trading days of seasoning. See the index methodology for full eligibility details.