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
0.51%
Industry change · 12M
+0.04 pp
Human Resource & Employment Services · contribution
+0.043 pp
Company participation
50%
of industry constituents above their 6M weight average

4 · Companies driving this sub-industry

Oct 2022 · sorted by absolute contribution to 12-month change

CompanyCountryMarket capUniverse weight3M contribution12M contribution12M price returnAbove 6M weight average
Automatic Data Processing →
ADP
United States$100.4bn0.356%+0.010 pp+0.040 pp+9.7%Yes
Paychex →
PAYX
United States$42.6bn0.151%-0.007 pp+0.003 pp-2.2%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.