WhichIndex

Which indexes is Banco Santander in?

Banco Santander is in 3 of the 57 indexes we track. Its largest weight is 17.93% in the IBEX 35, where it ranks #1 of 35.

Tickers
SAN (Bolsa de Madrid)
SAN (NYSE)
Country
Spain
Sector
Financials
Size
Large cap (market cap $10–200 billion; exact figure in the ranking)
Data as of
16 Oct 2026

Member of 3 indexes

Banco Santander's index memberships
IndexWeight %RankIndex size
IBEX 3517.93135
Euro Stoxx 504.09450
NYSE Composite0.41 (est.)431865

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.

Banco Santander across every index we track

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

Fewermore

Neighbours by weight

The members ranked just above and just below Banco Santander in each index
IndexRanked aboveRanked below
IBEX 35none, Banco Santander is the largestIberdrola (14.71%)
Euro Stoxx 50SAP (4.37%)TotalEnergies (4.06%)
NYSE CompositeAmphenol (0.42%)Toronto-Dominion Bank (0.41%)

Not in

Among the indexes we track for Spain and the euro area.