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›Industrials›Human Resource & Employment Services›Human Resource & Employment Services

1 · Sector

Weight and 12M allocation change

Information Technology28.3%+2.98 pp Consumer Discretionary12.3%+1.34 pp Industrials9.9%+0.26 pp Energy3.7%+0.18 pp Materials2.9%-0.09 pp Communication Services2.9%-0.40 pp Real Estate2.8%-0.49 pp Utilities2.8%-0.68 pp Consumer Staples7.1%-0.72 pp Financials11.1%-0.86 pp Health Care16.2%-1.52 pp

2 · Industry

Inside Industrials

Construction Machinery & Heavy Transportation Equipment0.79%+0.20 pp Rail Transportation0.77%-0.13 pp Electrical Components & Equipment0.69%+0.11 pp Industrial Machinery & Supplies & Components1.13%+0.11 pp Diversified Support Services0.22%+0.11 pp Environmental & Facilities Services0.42%-0.08 pp Industrial Conglomerates0.69%-0.08 pp Human Resource & Employment Services0.47%-0.06 pp Building Products0.52%+0.05 pp Aerospace & Defense2.28%+0.04 pp Air Freight & Logistics0.64%-0.04 pp Agricultural & Farm Machinery0.36%-0.03 pp Trading Companies & Distributors0.15%+0.03 pp Heavy Electrical Equipment0.02%-0.02 pp Construction & Engineering0.14%+0.02 pp Cargo Ground Transportation0.14%+0.02 pp Passenger Airlines0.18%-0.00 pp Data Processing & Outsourced Services0.07%+0.00 pp Research & Consulting Services0.19%+0.00 pp Passenger Ground Transportation0.00%+0.00 pp

3 · Sub-industry

Inside Human Resource & Employment Services

Human Resource & Employment Services0.47%-0.058 pp

Concentrated

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

View all contributions →

Human Resource & Employment Services · weight

0.47%

Industry change · 12M

-0.06 pp

Human Resource & Employment Services · contribution

-0.058 pp

Company participation

100%

of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Sep 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
Automatic Data Processing → ADP	United States	$99.1bn	0.331%	+0.121 pp	-0.038 pp	+8.6%	Yes
Paychex → PAYX	United States	$41.7bn	0.139%	+0.046 pp	-0.020 pp	+5.8%	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.