What is the biggest sector in US Stock Market?

Technology, at about 36.6% of the index.

How many sectors does US Stock Market span?

11 of the 11 GICS sectors are represented.

Which sector is performing best in 2026?

Technology leads YTD at +60.0%; Consumer Discretionary trails at -1.4%.

Market proxy VTI$377.991D +0.75%as of market close, Oct 2, 2026

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Constituents & weights Stock performance Heatmap Sector weights Concentration

US Stock Market sector weights: Technology 36.6% leads the index

Technology is US Stock Market's largest sector at 36.6% of the index; the top three sectors hold 56% between them (as of market close, Oct 2, 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#

Technology36.6%Financials10.4%Healthcare8.7%Comm Svcs8.7%Cons Disc8.4%Industrials8.1%Untracked6.9%

Technology36.6% of index

Largest members% index% sector

NVDA7.27%19.9%

AAPL6.59%18.0%

MSFT5.19%14.2%

AVGO2.27%6.2%

MU1.63%4.4%

129 members · $28.2Ttop 3 = 52% of sector

1D+1.1%

1M+8.2%

YTD+60.0%

1Y+79.2%

P/E33.9

Yield0.46%

vs last filing (2026 Q2)+2.3pp

vs a year ago (2025 Q3)+4.7pp

Returns are price returns, weighted by index weight, at the 2026-10-02 close. P/E is the weighted harmonic mean; yield counts non-payers as zero.

Financials10.4% of index

Largest members% index% sector

BRK-B1.25%12.0%

JPM1.10%10.5%

V0.79%7.5%

MA0.59%5.6%

BAC0.46%4.4%

115 members · $8.6Ttop 3 = 30% of sector

1D+0.1%

1M-6.7%

YTD-1.0%

1Y+3.0%

P/E14.5

Yield1.36%

vs last filing (2026 Q2)-0.3pp

vs a year ago (2025 Q3)-1.9pp

Returns are price returns, weighted by index weight, at the 2026-10-02 close. P/E is the weighted harmonic mean; yield counts non-payers as zero.

Healthcare8.7% of index

Largest members% index% sector

LLY1.29%14.7%

JNJ0.82%9.4%

ABBV0.62%7.1%

MRK0.48%5.5%

UNH0.45%5.2%

93 members · $6.9Ttop 3 = 31% of sector

1D+0.0%

1M-3.0%

YTD+18.7%

1Y+33.2%

P/E29.8

Yield1.48%

vs last filing (2026 Q2)+0.1pp

vs a year ago (2025 Q3)+0.3pp

Returns are price returns, weighted by index weight, at the 2026-10-02 close. P/E is the weighted harmonic mean; yield counts non-payers as zero.

Comm Svcs8.7% of index

Largest members% index% sector

GOOGL4.84%55.6%

META2.16%24.8%

NFLX0.37%4.3%

VZ0.23%2.6%

DIS0.24%2.7%

20 members · $7.5Ttop 3 = 85% of sector

1D+1.0%

1M+5.2%

YTD+8.8%

1Y+27.0%

P/E18.2

Yield0.65%

vs last filing (2026 Q2)+0.1pp

vs a year ago (2025 Q3)-0.2pp

Returns are price returns, weighted by index weight, at the 2026-10-02 close. P/E is the weighted harmonic mean; yield counts non-payers as zero.

Cons Disc8.4% of index

Largest members% index% sector

AMZN3.26%38.8%

TSLA1.41%16.7%

HD0.38%4.5%

MCD0.22%2.6%

TJX0.20%2.3%

93 members · $7.2Ttop 3 = 60% of sector

1D+1.4%

1M-2.7%

YTD-1.4%

1Y+0.7%

P/E24.7

Yield0.66%

vs last filing (2026 Q2)-0.6pp

vs a year ago (2025 Q3)-1.7pp

Returns are price returns, weighted by index weight, at the 2026-10-02 close. P/E is the weighted harmonic mean; yield counts non-payers as zero.

Industrials8.1% of index

Largest members% index% sector

CAT0.52%6.4%

GE0.44%5.4%

GEV0.36%4.4%

RTX0.34%4.1%

DE0.24%2.9%

126 members · $6.1Ttop 3 = 16% of sector

1D+0.9%

1M-0.7%

YTD+15.9%

1Y+20.0%

P/E27.4

Yield1.01%

vs last filing (2026 Q2)-1.0pp

vs a year ago (2025 Q3)-0.2pp

Returns are price returns, weighted by index weight, at the 2026-10-02 close. P/E is the weighted harmonic mean; yield counts non-payers as zero.

Staples3.8% of index

Largest members% index% sector

WMT0.61%16.0%

COST0.55%14.4%

KO0.39%10.3%

PG0.45%11.9%

PM0.39%10.3%

38 members · $3.3Ttop 3 = 42% of sector

1D+0.2%

1M-3.8%

YTD+6.3%

1Y+7.2%

P/E25.1

Yield2.55%

vs last filing (2026 Q2)-0.2pp

vs a year ago (2025 Q3)-0.5pp

Returns are price returns, weighted by index weight, at the 2026-10-02 close. P/E is the weighted harmonic mean; yield counts non-payers as zero.

Energy3.3% of index

Largest members% index% sector

CVX0.52%15.9%

COP0.21%6.3%

MPC0.16%5.0%

VLO0.16%4.9%

PSX0.14%4.3%

29 members · $1.8Ttop 3 = 50% of sector

1D+0.4%

1M-0.9%

YTD+54.6%

1Y+55.4%

P/E17.4

Yield2.32%

vs last filing (2026 Q2)+0.4pp

vs a year ago (2025 Q3)+0.7pp

Returns are price returns, weighted by index weight, at the 2026-10-02 close. P/E is the weighted harmonic mean; yield counts non-payers as zero.

Utilities1.9% of index

Largest members% index% sector

NEE0.21%11.0%

SO0.13%6.5%

CEG0.11%5.7%

DUK0.12%6.1%

AEP0.09%4.5%

40 members · $1.5Ttop 3 = 24% of sector

1D+0.5%

1M-5.2%

YTD-0.8%

1Y-0.3%

P/E19.1

Yield2.74%

vs last filing (2026 Q2)-0.3pp

vs a year ago (2025 Q3)-0.4pp

Returns are price returns, weighted by index weight, at the 2026-10-02 close. P/E is the weighted harmonic mean; yield counts non-payers as zero.

Real Estate1.6% of index

Largest members% index% sector

WELL0.21%13.8%

PLD0.16%10.3%

EQIX0.13%8.6%

SPG0.08%5.3%

AMT0.10%6.5%

38 members · $1.2Ttop 3 = 33% of sector

1D+0.4%

1M-6.2%

YTD+5.7%

1Y+4.6%

P/E28.3

Yield3.33%

vs last filing (2026 Q2)-0.2pp

vs a year ago (2025 Q3)-0.3pp

Returns are price returns, weighted by index weight, at the 2026-10-02 close. P/E is the weighted harmonic mean; yield counts non-payers as zero.

Materials1.4% of index

Largest members% index% sector

LIN0.30%21.3%

NEM0.17%11.9%

FCX0.14%10.0%

SHW0.10%7.3%

ECL0.09%6.7%

25 members · $1.1Ttop 3 = 43% of sector

1D+1.2%

1M-6.5%

YTD+13.5%

1Y+18.0%

P/E22.6

Yield1.53%

vs last filing (2026 Q2)-0.1pp

vs a year ago (2025 Q3)-0.1pp

Returns are price returns, weighted by index weight, at the 2026-10-02 close. P/E is the weighted harmonic mean; yield counts non-payers as zero.

Other0.1% of index

Largest members% index% sector

FERG0.06%100.0%

1 memberstop 3 = 100% of sector

1D+0.8%

1M+0.9%

YTD+0.3%

1Y-3.6%

P/E—

Yield1.59%

Returns are price returns, weighted by index weight, at the 2026-10-02 close. P/E is the weighted harmonic mean; yield counts non-payers as zero.

Untracked6.9%

Index weight in members outside our price universe — mostly recent additions and foreign listings. Named on the constituents page.

Hover a slice for its largest members, weighted returns, valuation and how the weight has moved since the fund's last filing — or tap one to open its card at a URL you can share.

TechnologyFinancialsHealthcareComm SvcsCons DiscIndustrialsStaplesEnergyUtilitiesReal EstateMaterialsOtherUntracked

Breakdown by sector#

SectorShare of indexWeightMembersYTDExample stocks

Technology

36.6%129+60.0%NVDA AAPL MSFT AVGO

Financials

10.4%115-1.0%BRK-B JPM V MA

Healthcare

8.7%93+18.7%LLY JNJ ABBV MRK

Communication Services

8.7%20+8.8%GOOGL META NFLX VZ

Consumer Discretionary

8.4%93-1.4%AMZN TSLA HD MCD

Industrials

8.1%126+15.9%CAT GE GEV RTX

Consumer Staples

3.8%38+6.3%WMT COST KO PG

Energy

3.3%29+54.6%CVX COP MPC VLO

Utilities

1.9%40-0.8%NEE SO CEG DUK

Real Estate

1.6%38+5.7%WELL PLD EQIX SPG

Materials

1.4%25+13.5%LIN NEM FCX SHW

Other

0.1%1+0.3%FERG

6.9% 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 price 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.

0%25%50%75%100%Technology 37%Technology 36.6% (+21.1pp since 2019 Q3)Financials 10%Financials 10.4% (-3.0pp since 2019 Q3)Healthcare 9%Healthcare 8.7% (-2.0pp since 2019 Q3)Cons Disc 8%Cons Disc 8.4% (-0.3pp since 2019 Q3)Industrials 8%Industrials 8.1% (+0.2pp since 2019 Q3)Comm Svcs 9%Comm Svcs 8.7% (+2.0pp since 2019 Q3)Staples 3.8% (-2.7pp since 2019 Q3)Energy 3.3% (+0.1pp since 2019 Q3)Utilities 1.9% (-1.1pp since 2019 Q3)Real Estate 1.6% (-1.3pp since 2019 Q3)Materials 1.4% (-0.4pp since 2019 Q3)Untracked 7%Untracked 7.0% (-12.6pp since 2019 Q3)2020202120222023202420252026est.

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 (~20% in 2019) by construction.

FAQ#

What is the biggest sector in US Stock Market?: Technology, at about 36.6% of the index (129 companies). The top three sectors — Technology, Financials, Healthcare — together make up 56% of the index.
How many sectors does US Stock Market span?: 11 of the 11 GICS sectors are currently represented among the members we track. Every member belongs to exactly one GICS sector.
Which sector is performing best in 2026?: Technology leads year to date at +60.0% (weighted by index weight within the sector); Consumer Discretionary trails at -1.4%.

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 market-cap weighted, a sector's share reflects investable size, not company count — Technology has 129 members but 36.6% 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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