WhichIndex

Which indexes is Ameren in?

Ameren is in 2 of the 57 indexes we track. Its largest weight is 0.06% (estimated from market cap) in the NYSE Composite, where it ranks #310 of 1865.

Ticker
AEE (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

Ameren's index memberships
IndexWeight %RankIndex size
NYSE Composite0.06 (est.)3101865
S&P 5000.04309502

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.

Ameren across every index we track

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

Fewermore

Neighbours by weight

The members ranked just above and just below Ameren in each index
IndexRanked aboveRanked below
NYSE CompositeZoetis (0.07%)American Water Works (0.06%)
S&P 500Zoetis (0.05%)American Water Works (0.04%)

Not in

Among the indexes we track for United States.