| # Components of BEL20 (fetched from Wikipedia 2025-12-30) | |
| ABI.BR # BRU::Anheuser-Busch InBev SA/NV | Consumer Defensive | Beverages - Brewers | Cap: 106,989,019,136 EUR ≈ 125,074,834,528 USD | |
| UCB.BR # BRU::UCB SA | Healthcare | Biotechnology | Cap: 47,928,692,736 EUR ≈ 56,030,734,383 USD | |
| KBC.BR # BRU::KBC Group NV | Financial Services | Banks - Regional | Cap: 45,320,908,800 EUR ≈ 52,982,121,106 USD | |
| ARGX.BR # BRU::argenx SE | Healthcare | Biotechnology | Cap: 42,236,284,928 EUR ≈ 49,376,061,124 USD | |
| ELI.BR # BRU::Elia Group SA/NV | Utilities | Utilities - Regulated Electric | Cap: 12,354,876,416 EUR ≈ 14,443,389,946 USD | |
| AGS.BR # BRU::ageas SA/NV | Financial Services | Insurance - Diversified | Cap: 11,511,773,184 EUR ≈ 13,457,765,458 USD | |
| SOF.BR # BRU::Sofina Société Anonyme | Financial Services | Asset Management | Cap: 9,357,589,504 EUR ≈ 10,939,430,684 USD | |
| GBLB.BR # BRU::Groupe Bruxelles Lambert SA | Financial Services | Asset Management | Cap: 9,340,460,032 EUR ≈ 10,919,405,583 USD | |
| DIE.BR # BRU::D'Ieteren Group SA | Consumer Cyclical | Auto & Truck Dealerships | Cap: 8,205,697,024 EUR ≈ 9,592,818,083 USD | |
| ACKB.BR # BRU::Ackermans & Van Haaren NV | Industrials | Engineering & Construction | Cap: 7,698,706,432 EUR ≈ 9,000,123,946 USD | |
| SYENS.BR # BRU::Syensqo SA/NV | Basic Materials | Chemicals | Cap: 7,433,523,200 EUR ≈ 8,690,113,170 USD | |
| LOTB.BR # BRU::Lotus Bakeries NV | Consumer Defensive | Packaged Foods | Cap: 6,959,294,464 EUR ≈ 8,135,719,072 USD | |
| WDP.BR # BRU::Warehouses De Pauw SA | Real Estate | REIT - Industrial | Cap: 5,229,504,512 EUR ≈ 6,113,519,096 USD | |
| UMI.BR # BRU::Umicore SA | Industrials | Waste Management | Cap: 4,724,636,160 EUR ≈ 5,523,305,949 USD | |
| AED.BR # BRU::Aedifica NV/SA | Real Estate | REIT - Healthcare Facilities | Cap: 3,304,673,792 EUR ≈ 3,863,307,945 USD | |
| COFB.BR # BRU::Cofinimmo SA | Real Estate | REIT - Healthcare Facilities | Cap: 3,086,608,384 EUR ≈ 3,608,379,963 USD | |
| SOLB.BR # BRU::Solvay SA | Basic Materials | Chemicals | Cap: 2,887,718,144 EUR ≈ 3,375,868,589 USD | |
| MELE.BR # BRU::Melexis NV | Technology | Semiconductors | Cap: 2,500,013,568 EUR ≈ 2,922,625,012 USD | |
| AZE.BR # BRU::Azelis Group NV | Basic Materials | Specialty Chemicals | Cap: 2,287,291,136 EUR ≈ 2,673,943,201 USD | |
| GLPG.BR # BRU::Galapagos NV | Unknown | | Cap: N/A EUR | |