Alliant Energy

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

Historical time machine

Historical observation

20182026

Universe weight

0.047%

12M weight contribution

-0.018 pp

3M weight contribution

-0.003 pp

12M price return

+5.4%

Share of matched S&P 500 members

Monthly observations through Oct 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
Oct 2021	$14.2bn	0.047%	-0.018 pp	+5.4%	No
Sep 2021	$14.0bn	0.049%	+0.049 pp	+11.6%	No
Aug 2021	$15.2bn	0.051%	+0.051 pp	+15.6%	Yes
Jul 2021	$14.6bn	0.050%	+0.050 pp	+11.9%	Yes
Jun 2021	$13.9bn	0.049%	+0.049 pp	+20.0%	Yes
May 2021	$14.3bn	0.051%	+0.051 pp	+19.2%	Yes
Apr 2021	$14.0bn	0.051%	-0.016 pp	+19.2%	Yes
Mar 2021	$13.5bn	0.026%	+0.026 pp	+15.5%	No
Feb 2021	$11.5bn	0.023%	+0.023 pp	-8.8%	No
Jan 2021	$12.2bn	0.029%	-0.041 pp	-15.6%	No
Dec 2020	$12.9bn	0.052%	-0.012 pp	-3.2%	Yes
Nov 2020	$13.1bn	0.056%	-0.008 pp	+2.1%	Yes
Oct 2020	$13.8bn	0.065%	-0.001 pp	+6.6%	Yes
Sep 2020	$12.9bn	0.000%	-0.068 pp	-1.5%	No
Aug 2020	$13.5bn	0.000%	-0.068 pp	+6.2%	No
Jul 2020	$13.4bn	0.000%	-0.063 pp	+11.8%	No
Jun 2020	$11.9bn	0.000%	-0.063 pp	+0.2%	No
May 2020	$12.3bn	0.000%	-0.066 pp	+6.9%	No
Apr 2020	$11.9bn	0.067%	+0.004 pp	+5.7%	Yes
Mar 2020	$11.8bn	0.000%	-0.064 pp	+5.4%	No
Feb 2020	$12.8bn	0.000%	-0.063 pp	+16.8%	No
Jan 2020	$14.3bn	0.070%	+0.036 pp	+37.3%	Yes
Dec 2019	$13.2bn	0.065%	+0.029 pp	+33.4%	No
Nov 2019	$12.7bn	0.064%	+0.029 pp	+20.3%	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.