CME Group

CME · United States · Financial Exchanges & Data · matched S&P 500 member. Follow its market-weight contribution.

Historical time machine

Historical observation

20182026

Universe weight

0.045%

12M weight contribution

+0.045 pp

3M weight contribution

-0.007 pp

12M price return

+18.4%

Share of matched S&P 500 members

Monthly observations through Aug 2021

Company price index

A separate dimension from market allocation

Historical observations

Most recent 24 observations at or before the selected month

Month	Market cap	Universe weight	12M weight change	12M return	Above 6M weight average
Aug 2021	$13.4bn	0.045%	+0.045 pp	+18.4%	No
Jul 2021	$14.1bn	0.048%	+0.048 pp	+31.8%	Yes
Jun 2021	$14.2bn	0.050%	+0.050 pp	+35.1%	Yes
May 2021	$14.6bn	0.052%	+0.052 pp	+23.7%	Yes
Apr 2021	$13.5bn	0.049%	-0.018 pp	+17.1%	Yes
Mar 2021	$13.6bn	0.027%	+0.027 pp	+22.0%	No
Feb 2021	$13.3bn	0.027%	+0.027 pp	+3.7%	No
Jan 2021	$12.1bn	0.029%	-0.042 pp	-13.6%	No
Dec 2020	$12.1bn	0.049%	-0.017 pp	-6.3%	Yes
Nov 2020	$11.7bn	0.050%	-0.019 pp	-11.1%	Yes
Oct 2020	$10.0bn	0.048%	-0.024 pp	-24.6%	Yes
Sep 2020	$11.2bn	0.000%	-0.075 pp	-18.5%	No
Aug 2020	$11.7bn	0.000%	-0.079 pp	-16.8%	No
Jul 2020	$11.1bn	0.000%	-0.069 pp	-12.1%	No
Jun 2020	$10.8bn	0.000%	-0.070 pp	-13.9%	No
May 2020	$12.2bn	0.000%	-0.074 pp	-2.3%	No
Apr 2020	$11.9bn	0.066%	+0.000 pp	+2.3%	Yes
Mar 2020	$11.5bn	0.000%	-0.063 pp	+7.9%	No
Feb 2020	$13.3bn	0.000%	-0.070 pp	+12.3%	No
Jan 2020	$14.5bn	0.071%	+0.031 pp	+22.4%	No
Dec 2019	$13.4bn	0.066%	+0.021 pp	+9.7%	No
Nov 2019	$13.5bn	0.068%	+0.026 pp	+9.3%	No
Oct 2019	$13.7bn	0.071%	+0.030 pp	+15.1%	No
Sep 2019	$14.1bn	0.075%	+0.039 pp	+27.3%	Yes

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.