WhichIndex

Which indexes is IMI in?

IMI is in 1 of the 57 indexes we track. Its largest weight is 0.29% in the FTSE 100, where it ranks #57 of 100.

Ticker
IMI (London Stock Exchange)
Country
United Kingdom
Sector
Industrials
Size
Mid cap (market cap $2–10 billion; exact figure in the ranking)
Data as of
16 Oct 2026

Member of 1 index

IMI's index memberships
IndexWeight %RankIndex size
FTSE 1000.2957100

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.

IMI across every index we track

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

Fewermore

Neighbours by weight

The members ranked just above and just below IMI in each index
IndexRanked aboveRanked below
FTSE 100Rentokil Initial (0.30%)Pearson plc (0.29%)