American Electric Power

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

Historical time machine

Historical observation

20182026

Universe weight

0.122%

12M weight contribution

-0.043 pp

3M weight contribution

-0.010 pp

12M price return

-13.4%

Share of matched S&P 500 members

Monthly observations through Jan 2024

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
Jan 2024	$41.1bn	0.122%	-0.043 pp	-13.4%	No
Dec 2023	$42.7bn	0.127%	-0.049 pp	-11.0%	Yes
Nov 2023	$41.8bn	0.130%	-0.038 pp	-14.5%	Yes
Oct 2023	$38.9bn	0.132%	-0.028 pp	-10.8%	Yes
Sep 2023	$38.8bn	0.129%	-0.045 pp	-9.6%	Yes
Aug 2023	$40.4bn	0.129%	-0.056 pp	-18.7%	Yes
Jul 2023	$43.7bn	0.095%	-0.079 pp	-10.9%	No
Jun 2023	$43.3bn	0.100%	-0.091 pp	-9.1%	No
May 2023	$42.8bn	0.106%	-0.083 pp	-15.6%	No
Apr 2023	$47.5bn	0.160%	-0.024 pp	-3.5%	No
Mar 2023	$46.8bn	0.160%	-0.010 pp	-5.6%	No
Feb 2023	$45.2bn	0.159%	+0.000 pp	+0.4%	No
Jan 2023	$48.3bn	0.165%	+0.012 pp	+7.5%	No
Dec 2022	$48.8bn	0.176%	+0.033 pp	+10.4%	Yes
Nov 2022	$49.7bn	0.169%	+0.031 pp	+23.5%	No
Oct 2022	$45.2bn	0.160%	+0.018 pp	+7.3%	No
Sep 2022	$44.4bn	0.175%	+0.032 pp	+10.1%	No
Aug 2022	$51.5bn	0.184%	+0.034 pp	+15.7%	Yes
Jul 2022	$50.6bn	0.174%	+0.023 pp	+15.7%	No
Jun 2022	$49.3bn	0.192%	+0.042 pp	+17.4%	Yes
May 2022	$52.4bn	0.189%	+0.035 pp	+22.8%	Yes
Apr 2022	$50.9bn	0.184%	+0.023 pp	+15.7%	Yes
Mar 2022	$50.3bn	0.169%	+0.087 pp	+22.0%	Yes
Feb 2022	$45.7bn	0.159%	+0.084 pp	+25.4%	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.