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 Technology29.3%+5.56 ppConsumer Discretionary12.4%+2.29 ppIndustrials10.4%-0.00 ppReal Estate2.9%-0.24 ppMaterials2.8%-0.35 ppCommunication Services2.8%-0.37 ppEnergy3.2%-0.82 ppUtilities2.8%-0.82 ppFinancials11.5%-0.88 ppConsumer Staples6.6%-1.31 ppHealth Care15.2%-3.03 pp

2 · Industry

Inside Information Technology

Systems Software8.74%+2.04 ppTechnology Hardware, Storage & Peripherals9.23%+1.49 ppSemiconductors4.01%+0.98 ppApplication Software3.81%+0.95 ppSemiconductor Materials & Equipment0.51%+0.12 ppCommunications Equipment0.85%-0.07 ppIT Consulting & Other Services1.33%+0.05 ppElectronic Manufacturing Services0.18%+0.05 ppElectronic Equipment & Instruments0.36%-0.03 ppElectronic Components0.12%-0.02 ppInternet Services & Infrastructure0.12%-0.01 ppTechnology Distributors0.09%+0.00 pp

3 · Sub-industry

Inside Communications Equipment

Communications Equipment0.85%-0.073 pp
Concentrated

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

View all contributions →
Communications Equipment · weight
0.85%
Industry change · 12M
-0.07 pp
Communications Equipment · contribution
-0.073 pp
Company participation
75%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Dec 2023 · sorted by absolute contribution to 12-month change

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
Cisco →
CSCO
United States$205.3bn0.612%-0.116 pp-0.094 pp+9.3%No
Arista Networks →
ANET
United States$18.3bn0.055%+0.007 pp+0.021 pp+94.1%Yes
F5, Inc. →
FFIV
United States$10.7bn0.032%-0.000 pp+0.001 pp+24.7%Yes
Motorola Solutions →
MSI
United States$52.0bn0.155%+0.003 pp-0.001 pp+23.0%Yes

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.