Apps2 · mcap

How much of the S&P 500 and the Nasdaq-100 do their 10 largest companies, the Mag 7 and NVDA hold? Daily, last 3 years

Share of each index's total market value held by its 10 largest companies (Top 10) and by every other member (Rest), and the index total against the Mag 7 and NVDA, each session from 0000-00-00 to 0000-00-00 (000 sessions). Market value = daily close × shares outstanding from SEC EDGAR, full (not float-adjusted, not capped); one company counted once (Alphabet GOOGL + GOOG). Data built 0000-00-00 00:00 UTC.

S&P 500 · Top 10 share of index market value
00.0%latest (0000-00-00)00.0%1 year earlier (0000-00-00)00.0%3 years earlier (0000-00-00)
Nasdaq-100 · Top 10 share of index market value
00.0%latest (0000-00-00)00.0%1 year earlier (0000-00-00)00.0%3 years earlier (0000-00-00)

Drag the ⇕ strip on the left axis to stretch the y-axis (double-click it for 1×) · double-click a chart to reset the time window · hover for the day's 10 names · drag to pan · wheel or pinch to zoom time (both charts move together) · shift+wheel or the Y slider scales one chart's percent axis · click a line for a dateline on both charts, click empty space to clear · drag the bottom grip to resize one chart · click a legend to minimise it.

What was counted, per index

Members left out on some days (no price after 3 sessions of carrying, or no SEC share count)

Companies whose share count needs a conversion (approximate shares)

Membership changes applied inside the 3 years

Check against published index weights

Machine-readable data (plain text)