WhichIndex

Luxembourg stock indexes

We track 1 Luxembourg stock index (LuxX), covering 15 companies.

Indexes

Companies in the most indexes

Luxembourg companies by number of index memberships
CompanyIndexesMember of
ArcelorMittal4LuxX, AEX, CAC 40, IBEX 35
Aperam3LuxX, AMX, BEL 20
Reinet Investments2LuxX, JSE Top 40
Brederode1LuxX
Luxempart1LuxX
RTL Group1LuxX
SES1LuxX
Socfinaf1LuxX
Socfinasia1LuxX
Tenaris2FTSE MIB, NYSE Composite
Allegro1WIG20
Spotify Technology S.A.1NYSE Composite
Subsea 7 SA1OSEBX
eDreams ODIGEO1IBEX Small Cap
Żabka Group1WIG20

Largest Luxembourg companies by market cap

Market caps from each exchange's listings, converted to US dollars at the same day's exchange rates, as of 2026-10-09.

The largest Luxembourg companies among those we track
#CompanyMarket capIndexes
1Spotify Technology S.A.$118.9 billion1
2ArcelorMittal$44.7 billion4
3Tenaris$29.7 billion2
4Subsea 7 SA$10.2 billion1
5Reinet Investments$5.1 billion2
6Aperam$2.9 billion3
7eDreams ODIGEO$533 million1

Where Luxembourg sits on the map

Lit tiles are the Luxembourg indexes we track.

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