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
0.97%
Industry change · 12M
+0.42 pp
Communications Equipment · contribution
+0.421 pp
Company participation
25%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Jan 2022 · sorted by absolute contribution to 12-month change

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
Cisco →
CSCO
United States$234.8bn0.790%+0.001 pp+0.339 pp+28.3%No
Motorola Solutions →
MSI
United States$39.2bn0.132%-0.009 pp+0.064 pp+40.3%No
F5, Inc. →
FFIV
United States$12.7bn0.043%+0.000 pp+0.014 pp+6.0%No
Arista Networks →
ANET
United States$2.4bn0.008%+0.001 pp+0.005 pp+61.7%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.