WhichIndex

Which indexes is Constellation Energy in?

Constellation Energy is in 3 of the 57 indexes we track. Its largest weight is 0.42% in the Nasdaq-100, where it ranks #44 of 100.

Ticker
CEG (Nasdaq)
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 3 indexes

Constellation Energy's index memberships
IndexWeight %RankIndex size
Nasdaq-1000.4244100
Nasdaq Composite0.19 (est.)523373
S&P 5000.14117502

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.

Constellation Energy across every index we track

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

Fewermore

Neighbours by weight

The members ranked just above and just below Constellation Energy in each index
IndexRanked aboveRanked below
Nasdaq-100Arm Holdings (0.44%)Adobe Inc. (0.41%)
Nasdaq CompositeAdobe Inc. (0.19%)Datadog (0.19%)
S&P 500BNY Mellon (0.14%)Duke Energy (0.14%)

Not in

Among the indexes we track for United States.