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
Communications Equipment · weight
0.89%
Industry change · 12M
-0.08 pp
Communications Equipment · contribution
-0.077 pp
Company participation
25%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

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

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
Cisco →
CSCO
United States$199.9bn0.684%+0.022 pp-0.105 pp-9.6%Yes
Arista Networks →
ANET
United States$9.6bn0.033%+0.000 pp+0.025 pp+1.4%No
Motorola Solutions →
MSI
United States$43.0bn0.147%-0.001 pp+0.015 pp+12.4%No
F5, Inc. →
FFIV
United States$8.9bn0.031%+0.000 pp-0.012 pp-28.9%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.