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
0.87%
Industry change · 12M
-0.05 pp
Communications Equipment · contribution
-0.050 pp
Company participation
75%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

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

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
Cisco →
CSCO
United States$196.6bn0.613%-0.132 pp-0.080 pp+0.3%No
Arista Networks →
ANET
United States$17.1bn0.053%+0.005 pp+0.017 pp+57.7%Yes
Motorola Solutions →
MSI
United States$53.6bn0.167%+0.016 pp+0.013 pp+20.2%Yes
F5, Inc. →
FFIV
United States$10.2bn0.032%+0.001 pp+0.000 pp+10.7%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.