IBEX 35IBEX 35 companies

The IBEX 35 tracks 35 Spanish companies. As of 22 Oct 2026 the largest is Banco Santander at 17.31% of the index, and the 10 largest make up 77.33%.

Members

35

Weighting

Free-float market cap

Provider

BME (SIX)

Review

Semi-annual (Jun, Dec), with quarterly follow-up

Country

Spain

Data as of

22 Oct 2026

Source: Amundi IBEX 35 UCITS ETF (FR0010655746) holdings, as of 2026-10-22 (ETF weights, not the provider's). How we source this.

Members

Concentration

The 10 largest members make up 77.33% of the index.

• Banco Santander17.31%
• Iberdrola15.03%
• BBVA12.83%
• Inditex10.89%
• CaixaBank6.43%
• Ferrovial3.33%
• AENA3.28%
• Repsol3.19%
• Amadeus IT Group2.54%
• ACS2.50%

Which other indexes share members with the IBEX 35

Shade shows how many members each index shares with the IBEX 35.

Americas

1. S&P Mervalno shared members
2. Ibovespano shared members
3. S&P/TSX Compositeno shared members
4. S&P IPSAno shared members
5. S&P/BMV IPCno shared members
6. S&P 500no shared members
7. Nasdaq-1001 shared
8. Dow Jonesno shared members
9. Russell 2000no shared members
10. Nasdaq Composite2 shared
11. NYSE Composite2 shared

Europe

1. Euro Stoxx 504 shared
2. ATXno shared members
3. BEL 20no shared members
4. OMX Copenhagen 20no shared members
5. OMX Tallinnno shared members
6. OMX Helsinki 25no shared members
7. CAC 401 shared
8. DAXno shared members
9. OMX Iceland 15no shared members
10. ISEQ 20no shared members
11. FTSE MIBno shared members
12. OMX Rigano shared members
13. OMX Vilniusno shared members
14. LuxX1 shared
15. AEX1 shared
16. AMXno shared members
17. AMS Next 20no shared members
18. OSEBXno shared members
19. WIG20no shared members
20. PSIno shared members
21. MOEX Russiano shared members
22. IBEX 35this index
23. IBEX Medium Capno shared members
24. IBEX Small Capno shared members
25. OMX Stockholm 30no shared members
26. SMIno shared members
27. BIST 100no shared members
28. FTSE 1001 shared

Asia-Pacific

1. S&P/ASX 200no shared members
2. Shanghai Compositeno shared members
3. Hang Sengno shared members
4. Nifty 50no shared members
5. IDX Compositeno shared members
6. Nikkei 225no shared members
7. S&P/NZX 50no shared members
8. KSE 100no shared members
9. Straits Times Indexno shared members
10. KOSPIno shared members
11. VN-Indexno shared members

Middle East & Africa

1. EGX 30no shared members
2. TA-35no shared members
3. ASE Generalno shared members
4. QE Indexno shared members
5. TASIno shared members
6. JSE Top 40no shared members
7. ADX Generalno shared members

Fewermore

• Euro Stoxx 50: 4 shared companies. Compare the two
• NYSE Composite: 2 shared companies
• Nasdaq Composite: 2 shared companies
• AEX: 1 shared company
• CAC 40: 1 shared company
• FTSE 100: 1 shared company
• LuxX: 1 shared company
• Nasdaq-100: 1 shared company

Related indexes: IBEX Medium Cap, IBEX Small Cap, Euro Stoxx 50.

Recent changes

We started recording changes on 26 Oct 2026. None recorded yet.

Questions

How many companies are in the IBEX 35?

The IBEX 35 has 35 members. We show 35 as of 22 Oct 2026.

What is the largest company in the IBEX 35?

Banco Santander, at 17.31% of the index as of 22 Oct 2026.

How is the IBEX 35 weighted?

Free-float market cap, according to BME (SIX).

When is the IBEX 35 reviewed?

Semi-annual (Jun, Dec), with quarterly follow-up.

Which IBEX 35 companies are also in the Euro Stoxx 50?

4 of them, as of 22 Oct 2026. The membership map below links the Euro Stoxx 50 and the comparison page.

Sources