Observatory · observe first

Follow the allocation change

Matched S&P 500 members → sector → industry → sub-industry → company. Each step uses the same percentage points.

Historical time machine
Historical observation
20182026
Universe›Information Technology›Communications Equipment›Communications Equipment

1 · Sector

Weight and 12M allocation change

Information Technology38.1%+4.07 ppUtilities2.8%-0.02 ppConsumer Discretionary12.0%-0.02 ppEnergy2.3%-0.32 ppMaterials2.1%-0.33 ppReal Estate2.1%-0.38 ppIndustrials9.4%-0.40 ppCommunication Services2.2%-0.48 ppHealth Care11.5%-0.58 ppConsumer Staples6.2%-0.72 ppFinancials11.4%-0.82 pp

2 · Industry

Inside Information Technology

Semiconductors15.05%+3.50 ppApplication Software2.91%-0.61 ppTechnology Hardware, Storage & Peripherals8.57%+0.37 ppSystems Software7.72%+0.34 ppSemiconductor Materials & Equipment0.90%+0.31 ppCommunications Equipment1.07%+0.26 ppIT Consulting & Other Services0.99%-0.16 ppElectronic Components0.31%+0.12 ppElectronic Equipment & Instruments0.23%-0.06 ppElectronic Manufacturing Services0.17%+0.04 ppInternet Services & Infrastructure0.11%-0.03 ppTechnology Distributors0.04%-0.01 pp

3 · Sub-industry

Inside Communications Equipment

Communications Equipment1.07%+0.261 pp
Concentrated

Most of this industry's gains came from a few companies.

View all contributions →
Communications Equipment · weight
1.07%
Industry change · 12M
+0.26 pp
Communications Equipment · contribution
+0.261 pp
Company participation
25%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Nov 2025 · sorted by absolute contribution to 12-month change

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
Arista Networks →
ANET
United States$164.6bn0.323%-0.033 pp+0.253 pp+28.8%No
Cisco →
CSCO
United States$304.0bn0.597%+0.030 pp+0.077 pp+33.3%Yes
Motorola Solutions →
MSI
United States$61.6bn0.121%-0.042 pp-0.063 pp-25.3%No
F5, Inc. →
FFIV
United States$13.9bn0.027%-0.010 pp-0.005 pp-4.5%No

Company contributions use weights among matched S&P 500 members and add through each level without rescaling. Companies without matched shares and prices are omitted. These observations do not establish official index weights or actual fund flows.