Ameren

AEE · United States · Multi-Utilities · matched S&P 500 member. Follow its market-weight contribution.

Historical time machine

Historical observation

20182026

Universe weight

0.105%

12M weight contribution

+0.055 pp

3M weight contribution

+0.005 pp

12M price return

+29.9%

Share of matched S&P 500 members

Monthly observations through Sep 2019

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
Sep 2019	$19.7bn	0.105%	+0.055 pp	+29.9%	Yes
Aug 2019	$19.0bn	0.103%	+0.053 pp	+25.3%	Yes
Jul 2019	$18.6bn	0.099%	+0.011 pp	+25.2%	No
Jun 2019	$18.4bn	0.099%	+0.009 pp	+26.8%	Yes
May 2019	$18.0bn	0.105%	+0.017 pp	+27.5%	Yes
Apr 2019	$17.8bn	0.099%	+0.012 pp	+27.7%	Yes
Mar 2019	$18.0bn	0.103%	+0.019 pp	+33.6%	Yes
Feb 2019	$17.4bn	0.101%	+0.022 pp	+35.2%	Yes
Jan 2019	$16.9bn	0.056%	-0.023 pp	+26.2%	Yes
Dec 2018	$15.9bn	0.057%	-0.021 pp	+18.7%	No
Nov 2018	$16.8bn	0.056%	-0.023 pp	+24.1%	No
Oct 2018	$15.8bn	0.053%	-0.025 pp	+16.8%	No
Sep 2018	$15.4bn	0.049%	-0.029 pp	+14.3%	No
Aug 2018	$15.4bn	0.050%	-0.029 pp	+13.5%	No
Jul 2018	$15.1bn	0.088%	+0.010 pp	+11.4%	Yes
Jun 2018	$14.8bn	0.090%	+0.012 pp	+9.3%	Yes
May 2018	$14.4bn	0.088%	+0.009 pp	+5.4%	Yes
Apr 2018	$14.2bn	0.087%	+0.009 pp	+4.4%	Yes
Mar 2018	$13.7bn	0.084%	+0.006 pp	+0.8%	Yes
Feb 2018	$13.2bn	0.079%	+0.001 pp	-4.1%	Yes
Jan 2018	$13.7bn	0.078%	+0.000 pp	+0.0%	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.