Nasdaq-100
IndexNasdaq-100 sector weights: Technology 59.7% leads the index
Technology is the Nasdaq-100's largest sector at 59.7% of the index; the top three sectors hold 83% between them (as of market close, Sep 4, 2026). Weights are each member's index weight estimated for today (the tracking fund's last SEC filing, rolled forward on price — see the full constituents list company by company) summed by GICS sector — so this is the real mix you own in an index fund, not an equal-count tally.
The mix at a glance#
Returns are total returns, weighted by index weight, at the 2026-09-04 close. P/E is the weighted harmonic mean; yield counts non-payers as zero.
Returns are total returns, weighted by index weight, at the 2026-09-04 close. P/E is the weighted harmonic mean; yield counts non-payers as zero.
Returns are total returns, weighted by index weight, at the 2026-09-04 close. P/E is the weighted harmonic mean; yield counts non-payers as zero.
Returns are total returns, weighted by index weight, at the 2026-09-04 close. P/E is the weighted harmonic mean; yield counts non-payers as zero.
Returns are total returns, weighted by index weight, at the 2026-09-04 close. P/E is the weighted harmonic mean; yield counts non-payers as zero.
Returns are total returns, weighted by index weight, at the 2026-09-04 close. P/E is the weighted harmonic mean; yield counts non-payers as zero.
Returns are total returns, weighted by index weight, at the 2026-09-04 close. P/E is the weighted harmonic mean; yield counts non-payers as zero.
Returns are total returns, weighted by index weight, at the 2026-09-04 close. P/E is the weighted harmonic mean; yield counts non-payers as zero.
Returns are total returns, weighted by index weight, at the 2026-09-04 close. P/E is the weighted harmonic mean; yield counts non-payers as zero.
Returns are total returns, weighted by index weight, at the 2026-09-04 close. P/E is the weighted harmonic mean; yield counts non-payers as zero.
Index weight in members outside our price universe — mostly recent additions and foreign listings. Named on the constituents page.
Breakdown by sector#
0.5% of index weight sits in members outside our price universe (listed on the constituents page) and isn't sectored here. YTD is the weight-weighted total return of the sector's members; example stocks are each sector's largest members (hover for their index weight). Explore the members of each sector in the screener.
Sector weights over time (2019–2026)#
Every quarterly SEC portfolio filing since 2019, stacked to 100%, plus today's estimate as the final segment.
Everything left of the dashed line is a filed weight on that date; the final segment is today's estimate — the 2026-06-30 filing rolled forward on each member's price — the same basis as the headline above.
Quarterly N-PORT snapshots; sector attribution uses today's classifications, so members that have since left the index (or our universe) appear as the gray "untracked" band — larger in older quarters (~10% in 2019) by construction.
FAQ#
- What is the biggest sector in the Nasdaq-100?
- Technology, at about 59.7% of the index (42 companies). The top three sectors — Technology, Communication Services, Consumer Discretionary — together make up 83% of the index.
- How many sectors does the Nasdaq-100 span?
- 10 of the 11 GICS sectors are currently represented among the members we track — the Nasdaq-100 excludes financial companies by its methodology, and its market-cap weighting concentrates most of the weight in Technology. Every member belongs to exactly one GICS sector.
- Which sector is performing best in 2026?
- Technology leads year to date at +75.1% (weighted by index weight within the sector); Financials trails at -5.0%.
Notes & related#
Sector classifications are GICS (each company in exactly one sector); weights are from the tracking fund's N-PORT holdings rolled forward daily by price, summed per sector. Because weights are modified float-adjusted market-cap weighted (capped), a sector's share reflects investable size, not company count — Technology has 42 members but 59.7% of the weight. Sector pages: tech stocks, energy stocks; the full member list with weights is on the constituents page. Not investment advice.
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