Southern Company

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

Historical time machine

Historical observation

20182026

Universe weight

0.343%

12M weight contribution

+0.202 pp

3M weight contribution

+0.033 pp

12M price return

+48.6%

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	$64.6bn	0.343%	+0.202 pp	+48.6%	Yes
Aug 2019	$60.9bn	0.331%	+0.188 pp	+39.5%	Yes
Jul 2019	$58.7bn	0.313%	+0.026 pp	+21.5%	Yes
Jun 2019	$57.5bn	0.310%	+0.026 pp	+25.4%	Yes
May 2019	$55.7bn	0.324%	+0.049 pp	+25.2%	Yes
Apr 2019	$55.1bn	0.307%	+0.021 pp	+21.5%	Yes
Mar 2019	$53.5bn	0.307%	+0.031 pp	+21.9%	Yes
Feb 2019	$51.4bn	0.298%	+0.038 pp	+21.5%	Yes
Jan 2019	$50.0bn	0.165%	-0.093 pp	+13.5%	Yes
Dec 2018	$45.2bn	0.162%	-0.097 pp	+2.6%	No
Nov 2018	$48.7bn	0.162%	-0.096 pp	+10.6%	No
Oct 2018	$45.7bn	0.155%	-0.103 pp	+3.9%	No
Sep 2018	$44.2bn	0.141%	-0.117 pp	+0.6%	No
Aug 2018	$44.4bn	0.143%	-0.115 pp	+1.0%	No
Jul 2018	$49.2bn	0.287%	+0.029 pp	+10.7%	Yes
Jun 2018	$46.8bn	0.284%	+0.026 pp	+5.5%	Yes
May 2018	$45.4bn	0.276%	+0.017 pp	+2.3%	Yes
Apr 2018	$46.5bn	0.286%	+0.027 pp	+3.6%	Yes
Mar 2018	$45.0bn	0.276%	+0.018 pp	+0.3%	Yes
Feb 2018	$43.4bn	0.260%	+0.002 pp	-3.3%	Yes
Jan 2018	$45.3bn	0.258%	+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.