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 Technology35.4%+6.08 ppFinancials12.0%+0.50 ppConsumer Discretionary12.8%+0.34 ppConsumer Staples6.7%+0.10 ppUtilities2.6%-0.18 ppCommunication Services2.5%-0.30 ppReal Estate2.3%-0.61 ppMaterials2.2%-0.64 ppEnergy2.4%-0.74 ppIndustrials9.3%-1.06 ppHealth Care11.7%-3.51 pp

2 · Industry

Inside Industrials

Aerospace & Defense2.09%-0.31 ppRail Transportation0.58%-0.24 ppHeavy Electrical Equipment0.23%+0.20 ppIndustrial Machinery & Supplies & Components1.03%-0.19 ppAir Freight & Logistics0.39%-0.18 ppDiversified Support Services0.34%+0.11 ppIndustrial Conglomerates0.58%-0.10 ppPassenger Ground Transportation0.29%-0.09 ppAgricultural & Farm Machinery0.26%-0.07 ppConstruction Machinery & Heavy Transportation Equipment0.70%-0.07 ppEnvironmental & Facilities Services0.43%-0.06 ppElectrical Components & Equipment0.63%-0.05 ppBuilding Products0.57%+0.05 ppPassenger Airlines0.21%+0.04 ppResearch & Consulting Services0.16%-0.03 ppHuman Resource & Employment Services0.38%-0.03 ppTrading Companies & Distributors0.15%-0.02 ppData Processing & Outsourced Services0.06%-0.01 ppConstruction & Engineering0.14%+0.01 ppCargo Ground Transportation0.12%-0.00 pp

3 · Sub-industry

Inside Human Resource & Employment Services

Human Resource & Employment Services0.38%-0.029 pp
Concentrated

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

View all contributions →
Human Resource & Employment Services · weight
0.38%
Industry change · 12M
-0.03 pp
Human Resource & Employment Services · contribution
-0.029 pp
Company participation
100%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Dec 2024 · sorted by absolute contribution to 12-month change

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
Automatic Data Processing →
ADP
United States$119.3bn0.270%+0.008 pp-0.015 pp+28.4%Yes
Paychex →
PAYX
United States$50.5bn0.114%+0.002 pp-0.013 pp+21.3%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.