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

0.043%

12M weight contribution

-0.004 pp

3M weight contribution

+0.014 pp

12M price return

+8.8%

Share of matched S&P 500 members

Monthly observations through Aug 2023

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 2023	$13.5bn	0.043%	-0.004 pp	+8.8%	Yes
Jul 2023	$13.3bn	0.029%	-0.017 pp	+4.8%	No
Jun 2023	$12.3bn	0.029%	-0.024 pp	-4.9%	No
May 2023	$11.9bn	0.029%	-0.018 pp	-5.7%	No
Apr 2023	$12.4bn	0.042%	-0.011 pp	-11.1%	Yes
Mar 2023	$12.8bn	0.044%	-0.010 pp	-15.5%	Yes
Feb 2023	$12.4bn	0.043%	-0.011 pp	-17.9%	Yes
Jan 2023	$11.8bn	0.040%	-0.011 pp	-19.4%	No
Dec 2022	$11.2bn	0.040%	-0.008 pp	-22.9%	No
Nov 2022	$11.8bn	0.040%	-0.010 pp	-17.3%	No
Oct 2022	$11.5bn	0.041%	-0.008 pp	-18.8%	No
Sep 2022	$11.8bn	0.046%	+0.001 pp	-5.4%	No
Aug 2022	$13.0bn	0.047%	+0.002 pp	+0.2%	No
Jul 2022	$13.3bn	0.046%	-0.003 pp	-2.9%	No
Jun 2022	$13.6bn	0.053%	+0.003 pp	-0.6%	Yes
May 2022	$13.3bn	0.048%	-0.005 pp	-6.2%	No
Apr 2022	$14.6bn	0.053%	+0.004 pp	+12.1%	Yes
Mar 2022	$15.9bn	0.053%	+0.027 pp	+20.2%	Yes
Feb 2022	$15.8bn	0.055%	+0.028 pp	+22.2%	Yes
Jan 2022	$15.3bn	0.051%	+0.022 pp	+30.3%	Yes
Dec 2021	$15.2bn	0.049%	-0.000 pp	+29.5%	Yes
Nov 2021	$14.7bn	0.050%	+0.000 pp	+30.0%	Yes
Oct 2021	$14.7bn	0.049%	+0.002 pp	+51.0%	Yes
Sep 2021	$12.9bn	0.045%	+0.045 pp	+19.3%	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.