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

Materials29.6%+26.36 pp Consumer Discretionary9.0%+2.52 pp Energy2.3%-1.14 pp Real Estate2.1%-1.36 pp Utilities2.2%-1.54 pp Communication Services2.1%-1.79 pp Industrials7.2%-2.86 pp Consumer Staples5.1%-3.17 pp Financials7.8%-4.56 pp Information Technology21.1%-5.55 pp Health Care11.5%-6.91 pp

2 · Industry

Inside Communication Services

Integrated Telecommunication Services0.63%-0.79 pp Cable & Satellite0.42%-0.37 pp Movies & Entertainment0.47%-0.30 pp Wireless Telecommunication Services0.39%-0.27 pp Broadcasting0.07%-0.06 pp Advertising0.04%-0.01 pp Interactive Home Entertainment0.06%+0.00 pp

3 · Sub-industry

Inside Wireless Telecommunication Services

Wireless Telecommunication Services0.39%-0.270 pp

Concentrated

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

View all contributions →

Wireless Telecommunication Services · weight

0.39%

Industry change · 12M

-0.27 pp

Wireless Telecommunication Services · contribution

-0.270 pp

Company participation

of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

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

Company	Country	Market cap	Universe weight	3M contribution	12M contribution	12M price return	Above 6M weight average
T-Mobile US → TMUS	United States	$166.7bn	0.385%	-0.217 pp	-0.270 pp	+3.2%	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.