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 Technology39.6%+4.74 ppConsumer Discretionary12.3%+1.05 ppUtilities2.7%-0.15 ppFinancials11.2%-0.18 ppIndustrials9.5%-0.27 ppEnergy2.2%-0.34 ppCommunication Services2.1%-0.37 ppReal Estate2.1%-0.48 ppMaterials2.0%-0.52 ppConsumer Staples5.9%-1.08 ppHealth Care10.5%-2.40 pp

2 · Industry

Inside Industrials

Aerospace & Defense2.55%+0.35 ppIndustrial Machinery & Supplies & Components0.89%-0.20 ppAir Freight & Logistics0.30%-0.12 ppHeavy Electrical Equipment0.33%+0.11 ppHuman Resource & Employment Services0.29%-0.11 ppRail Transportation0.51%-0.10 ppDiversified Support Services0.27%-0.10 ppConstruction & Engineering0.23%+0.08 ppConstruction Machinery & Heavy Transportation Equipment0.82%+0.08 ppEnvironmental & Facilities Services0.39%-0.08 ppResearch & Consulting Services0.11%-0.06 ppIndustrial Conglomerates0.52%-0.06 ppCargo Ground Transportation0.09%-0.05 ppPassenger Ground Transportation0.39%+0.04 ppPassenger Airlines0.16%-0.03 ppTrading Companies & Distributors0.20%+0.02 ppAgricultural & Farm Machinery0.24%-0.02 ppBuilding Products0.54%-0.01 ppElectrical Components & Equipment0.62%-0.01 ppData Processing & Outsourced Services0.05%-0.01 pp

3 · Sub-industry

Inside Human Resource & Employment Services

Human Resource & Employment Services0.29%-0.106 pp
Concentrated

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

View all contributions →
Human Resource & Employment Services · weight
0.29%
Industry change · 12M
-0.11 pp
Human Resource & Employment Services · contribution
-0.106 pp
Company participation
0%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

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

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
Automatic Data Processing →
ADP
United States$105.3bn0.206%-0.059 pp-0.071 pp-8.1%No
Paychex →
PAYX
United States$42.1bn0.083%-0.027 pp-0.035 pp-13.6%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.