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Lab · Sector Dispersion

Breadth vs the sector.

Most screens show the sector's price. These show what its members are doing underneath — is the move broad, or carried by a few mega-caps? Median constituent vs the index, advancers vs decliners, how many names beat the index, and a cumulative advance/decline line that tends to turn before price. 40 ETFs & index cuts · closes through 2026-10-13.

What changed below the surface · 21-day

Where the constituents' advance/decline is pulling away from the ETF's price — the early read, before the headline reflects it.

Improving — breadth rising under flat/soft price

Weakening — breadth falling under firm price

Closelooknet indices

RUBIN 129/130 · 99% wt
Rubin Build-Out 100 (EW)
-0.06% med -1.91pp 23 / 105
HALO 99/100 · 99% wt
HALO Growth 100 (EW)
-0.23% med +0.32pp 51 / 46
AEI 34/34
Agentic Ecosystem Index (EW)
-0.05% med -2.22pp 9 / 25
EUROAI 61/65 · 94% wt
Euro-AI Sovereign 50 (EW)
+0.14% med -0.03pp 31 / 28
AW40 38/40 · 95% wt
Agentic Winners 40 (EW)
+0.03% med +0.21pp 23 / 15

S&P 500 sectors

XLK 72/72
Technology Select Sector
-1.22% med -0.05pp 20 / 51
XLF 76/76
Financial Select Sector
+0.58% med +0.01pp 63 / 12
XLV 59/59
Health Care Select Sector
+0.69% med +0.18pp 47 / 12
XLE 21/21
Energy Select Sector
+1.43% med +0.00pp 19 / 2
XLI 80/80
Industrial Select Sector
-0.06% med +0.24pp 49 / 31
XLP 36/36
Consumer Staples Select Sector
+1.17% med -0.17pp 30 / 6
XLY 48/48
Consumer Discretionary Select Sector
-0.51% med +0.27pp 20 / 28
XLU 31/31
Utilities Select Sector
+0.53% med +0.27pp 27 / 4
XLB 26/26
Materials Select Sector
+0.02% med -0.19pp 12 / 14
XLRE 31/31
Real Estate Select Sector
+0.75% med -0.23pp 20 / 11
XLC 23/23
Communication Services Select Sector
+0.97% med -0.68pp 14 / 7

Nasdaq-100 cuts

QTEC 45/45
First Trust Nasdaq-100 Technology
-1.62% med +0.33pp 12 / 33
QQXT 56/56
First Trust Nasdaq-100 Ex-Technology
-0.09% med +0.64pp 36 / 18
QQEW 49/49
First Trust Nasdaq-100 Equal Weight
-1.11% med +0.50pp 19 / 29
QTOP 31/31
iShares Nasdaq-100 Top 30
-0.83% med +0.84pp 16 / 15

Tech & thematics

IGV 110/110
iShares Expanded Tech-Software
-1.23% med +0.53pp 40 / 66
SMH 25/25
VanEck Semiconductor
-2.05% med -0.12pp 1 / 24
XSD 43/43
SPDR S&P Semiconductor (EW)
-3.55% med +0.35pp 6 / 36
AIQ 66/66
Global X AI & Technology
-1.02% med -0.12pp 24 / 42
CIBR 41/41
First Trust Nasdaq Cybersecurity
-2.00% med +0.03pp 10 / 31
DTCR 20/20
Global X Data Center & Digital Infra
-0.86% med -1.02pp 5 / 15
WTAI 47/48 · 77% wt
WisdomTree AI & Innovation
-2.76% med +1.07pp 12 / 34
QTUM 62/63 · 76% wt
Defiance Quantum
-2.35% med +0.38pp 12 / 49
ARKK 42/42
ARK Innovation
-1.79% med -0.03pp 8 / 34

Global

IXN 87/124 · 81% wt
iShares Global Tech
-1.36% med +0.27pp 29 / 57

Computed across the constituents we cover in our data lake (coverage shown per card). A/D line = cumulative daily advancers minus decliners. Decision-support, not investment advice.

FAQ · from the current data · as of 2026-10-13

Quick answers

What does this dispersion tool measure?

For each ETF or index it compares the median constituent return to the ETF/benchmark return, counts advancers versus decliners, and tracks a cumulative advance/decline line that tends to lead price — showing whether a move is broad-based or carried by a handful of mega-caps.

How many ETFs and index cuts are tracked, and as of when?

40 ETFs and index cuts across five groups — Closelooknet indices, S&P 500 sectors, Nasdaq-100 cuts, tech & thematics, and global — with closes through 2026-10-13.

Which sector shows the widest breadth divergence today?

As of 2026-10-13, AEI (Agentic Ecosystem Index (EW)) shows the widest gap between its median constituent and the ETF itself: median -2.22pp versus the ETF's -0.05%, with 9 advancers against 25 decliners.

Which sectors are improving or weakening on a 21-day view?

As of 2026-10-13, 4 ETFs show improving breadth (advance/decline rising under flat or soft price), led by XSD, and 5 show weakening breadth (advance/decline falling under firm price), led by XLY.

How is the advance/decline line computed?

It is the cumulative daily count of constituent advancers minus decliners, computed across the constituents held in the Closelooknet data lake — coverage is shown per ETF card.