Observatory · observe first

Automatic Data Processing

ADP · United States · Human Resource & Employment Services · matched S&P 500 member. Follow its market-weight contribution.

Historical time machine
Historical observation
20182026
Universe weight
0.316%
12M weight contribution
-0.005 pp
3M weight contribution
+0.010 pp
12M price return
+45.0%

Share of matched S&P 500 members

Monthly observations through Oct 2021

0.00.20.42018201920202021

Company price index

A separate dimension from market allocation

961441932018201920202021

Historical observations

Most recent 24 observations at or before the selected month

MonthMarket capUniverse weight12M weight change12M returnAbove 6M weight average
Oct 2021$94.6bn0.316%-0.005 pp+45.0%Yes
Sep 2021$84.6bn0.297%+0.297 pp+46.2%No
Aug 2021$88.4bn0.296%+0.295 pp+53.6%Yes
Jul 2021$89.2bn0.306%+0.306 pp+61.2%Yes
Jun 2021$84.5bn0.298%+0.298 pp+36.3%Yes
May 2021$83.4bn0.299%+0.298 pp+36.9%Yes
Apr 2021$79.6bn0.288%-0.066 pp+30.4%Yes
Mar 2021$80.7bn0.158%+0.157 pp+41.1%No
Feb 2021$74.5bn0.149%+0.149 pp+15.2%No
Jan 2021$70.8bn0.170%-0.195 pp-1.3%No
Dec 2020$75.6bn0.306%-0.056 pp+5.9%Yes
Nov 2020$74.6bn0.317%-0.056 pp+4.3%Yes
Oct 2020$67.7bn0.321%-0.046 pp-0.3%Yes
Sep 2020$60.0bn0.000%-0.372 pp-11.5%No
Aug 2020$59.8bn0.000%-0.401 pp-16.3%No
Jul 2020$57.1bn0.000%-0.385 pp-18.4%No
Jun 2020$64.0bn0.000%-0.388 pp-7.9%No
May 2020$63.0bn0.000%-0.405 pp-6.5%No
Apr 2020$63.3bn0.354%-0.045 pp-8.8%Yes
Mar 2020$59.0bn0.000%-0.399 pp-12.6%No
Feb 2020$66.8bn0.000%-0.386 pp+3.2%No
Jan 2020$74.0bn0.365%+0.164 pp+25.1%No
Dec 2019$73.8bn0.362%+0.157 pp+32.7%No
Nov 2019$73.9bn0.372%+0.158 pp+18.3%No

Its weight is estimated market cap divided by the total estimated market cap of matched S&P 500 members for the month. This is not an official float-adjusted S&P index weight.