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›Communication Services›Integrated Telecommunication Services›Integrated Telecommunication Services
Integrated Telecommunication Services · weight
0.64%
Industry change · 12M
-0.23 pp
Integrated Telecommunication Services · contribution
-0.229 pp
Company participation
50%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

May 2026 · sorted by absolute contribution to 12-month change

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
AT&T →
T
United States$172.3bn0.299%+0.029 pp-0.155 pp-6.9%No
Verizon →
VZ
United States$199.6bn0.346%+0.056 pp-0.074 pp+16.1%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.