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›Wireless Telecommunication Services›Wireless Telecommunication Services

1 · Sector

Weight and 12M allocation change

Information Technology34.6%+14.94 ppFinancials12.3%+4.16 ppConsumer Discretionary12.0%+4.02 ppIndustrials10.1%+2.81 ppConsumer Staples7.3%+1.96 ppCommunication Services2.7%+0.87 ppHealth Care11.2%+0.85 ppUtilities2.9%+0.76 ppReal Estate2.4%+0.60 ppEnergy2.3%+0.18 ppMaterials2.3%-31.15 pp

2 · Industry

Inside Communication Services

Integrated Telecommunication Services0.87%+0.29 ppWireless Telecommunication Services0.62%+0.23 ppMovies & Entertainment0.65%+0.19 ppCable & Satellite0.39%+0.10 ppInteractive Home Entertainment0.09%+0.04 ppBroadcasting0.06%+0.02 ppAdvertising0.03%-0.00 pp

3 · Sub-industry

Inside Wireless Telecommunication Services

Wireless Telecommunication Services0.62%+0.231 pp
Concentrated

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

View all contributions →
Wireless Telecommunication Services · weight
0.62%
Industry change · 12M
+0.23 pp
Wireless Telecommunication Services · contribution
+0.231 pp
Company participation
0%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

May 2025 · sorted by absolute contribution to 12-month change

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
T-Mobile US →
TMUS
United States$275.0bn0.623%-0.065 pp+0.231 pp+40.4%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.