Observatory · observe first

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
0.286%
12M weight contribution
+0.027 pp
3M weight contribution
+0.027 pp
12M price return
+3.6%

Share of matched S&P 500 members

Monthly observations through Apr 2018

0.30.30.32018

Company price index

A separate dimension from market allocation

971001032018

Historical observations

Most recent 24 observations at or before the selected month

MonthMarket capUniverse weight12M weight change12M returnAbove 6M weight average
Apr 2018$46.5bn0.286%+0.027 pp+3.6%Yes
Mar 2018$45.0bn0.276%+0.018 pp+0.3%Yes
Feb 2018$43.4bn0.260%+0.002 pp-3.3%Yes
Jan 2018$45.3bn0.258%+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.