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›Advertising›Advertising

1 · Sector

Weight and 12M allocation change

Health Care18.4%+2.69 pp Consumer Staples8.3%+1.19 pp Energy3.5%+1.09 pp Utilities3.7%+0.74 pp Real Estate3.5%+0.33 pp Materials3.2%-0.03 pp Information Technology26.7%-0.23 pp Communication Services3.9%-0.63 pp Consumer Discretionary6.4%-0.92 pp Financials12.3%-1.95 pp Industrials10.1%-2.27 pp

2 · Industry

Inside Communication Services

Movies & Entertainment0.77%-0.51 pp Cable & Satellite0.79%-0.29 pp Broadcasting0.13%+0.13 pp Integrated Telecommunication Services1.41%+0.05 pp Wireless Telecommunication Services0.66%+0.02 pp Interactive Home Entertainment0.06%-0.02 pp Advertising0.05%-0.01 pp

3 · Sub-industry

Inside Advertising

Advertising0.05%-0.010 pp

Concentrated

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

View all contributions →

Advertising · weight

0.05%

Industry change · 12M

-0.01 pp

Advertising · contribution

-0.010 pp

Company participation

of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Jun 2022 · 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
Omnicom Group → OMC	United States	$13.1bn	0.051%	-0.009 pp	-0.010 pp	-17.4%	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.