WhichIndex

Which indexes is Southern Company in?

Southern Company is in 2 of the 57 indexes we track. Its largest weight is 0.22% (estimated from market cap) in the NYSE Composite, where it ranks #109 of 1865.

Ticker
SO (NYSE)
Country
United States
Sector
Utilities
Size
Large cap (market cap $10–200 billion; exact figure in the ranking)
Data as of
16 Oct 2026

Member of 2 indexes

Southern Company's index memberships
IndexWeight %RankIndex size
NYSE Composite0.22 (est.)1091865
S&P 5000.15113502

Source: each index's own source, listed on its page. How we source this. Weights are estimates where marked. This page is refreshed when a membership changes or a weight moves by more than 10%; each index page has the daily figures.

Southern Company across every index we track

Lit tiles are the indexes Southern Company belongs to; the shade is its weight there.

Fewermore

Neighbours by weight

The members ranked just above and just below Southern Company in each index
IndexRanked aboveRanked below
NYSE CompositeICICI Bank (0.22%)Canadian Imperial Bank of Commerce (0.21%)
S&P 500Freeport-McMoRan (0.15%)Stryker Corporation (0.15%)

Not in

Among the indexes we track for United States.