WhichIndex

Which indexes is ATCO Ltd. in?

ATCO Ltd. is in 1 of the 57 indexes we track. Its largest weight is 0.12% in the S&P/TSX Composite, where it ranks #111 of 216.

Ticker
ACO.X (Toronto Stock Exchange)
Country
Canada
Sector
Utilities
Data as of
15 Oct 2026

Member of 1 index

ATCO Ltd.'s index memberships
IndexWeight %RankIndex size
S&P/TSX Composite0.12111216

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.

ATCO Ltd. across every index we track

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

Fewermore

Neighbours by weight

The members ranked just above and just below ATCO Ltd. in each index
IndexRanked aboveRanked below
S&P/TSX CompositeTorex Gold Resources Inc. (0.13%)Canadian Utilities Limited (0.12%)