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 Technology27.5%+27.47 ppHealth Care16.1%+16.09 ppIndustrials11.8%+11.83 ppConsumer Discretionary7.3%+7.33 ppConsumer Staples7.0%+6.99 ppCommunication Services4.3%+4.28 ppMaterials3.2%+3.15 ppReal Estate3.1%+3.13 ppUtilities3.0%+2.99 ppEnergy2.3%+2.34 ppFinancials14.3%-85.61 pp

2 · Industry

Inside Industrials

Aerospace & Defense4.02%+4.02 ppIndustrial Machinery & Supplies & Components1.09%+1.08 ppIndustrial Conglomerates0.96%+0.96 ppRail Transportation0.89%+0.89 ppAir Freight & Logistics0.73%+0.73 ppElectrical Components & Equipment0.63%+0.63 ppConstruction Machinery & Heavy Transportation Equipment0.60%+0.60 ppBuilding Products0.58%+0.58 ppHuman Resource & Employment Services0.44%+0.44 ppEnvironmental & Facilities Services0.42%+0.42 ppAgricultural & Farm Machinery0.36%+0.36 ppPassenger Airlines0.26%+0.26 ppResearch & Consulting Services0.22%+0.22 ppTrading Companies & Distributors0.14%+0.14 ppCargo Ground Transportation0.12%+0.12 ppDiversified Support Services0.11%+0.11 ppConstruction & Engineering0.11%+0.11 ppHeavy Electrical Equipment0.09%+0.09 ppData Processing & Outsourced Services0.07%+0.07 ppPassenger Ground Transportation0.00%+0.00 pp

3 · Sub-industry

Inside Human Resource & Employment Services

Human Resource & Employment Services0.44%+0.439 pp
Concentrated

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

View all contributions →
Human Resource & Employment Services · weight
0.44%
Industry change · 12M
+0.44 pp
Human Resource & Employment Services · contribution
+0.439 pp
Company participation
50%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Sep 2021 · sorted by absolute contribution to 12-month change

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
Automatic Data Processing →
ADP
United States$84.6bn0.297%-0.001 pp+0.297 pp+46.2%No
Paychex →
PAYX
United States$40.5bn0.142%+0.006 pp+0.142 pp+44.8%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.