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
Human Resource & Employment Services · weight
0.53%
Industry change · 12M
+0.23 pp
Human Resource & Employment Services · contribution
+0.229 pp
Company participation
0%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Nov 2019 · sorted by absolute contribution to 12-month change

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
Automatic Data Processing →
ADP
United States$73.9bn0.372%-0.029 pp+0.158 pp+18.3%No
Paychex →
PAYX
United States$30.8bn0.155%-0.004 pp+0.071 pp+25.4%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.