IAG shares are traded on the Spanish Stock Exchanges of Madrid, Barcelona, Bilbao and Valencia, through the Spanish Stock Exchanges Interconnection System (Mercado Continuo Español), and the London Stock Exchange’s main market for listed securities. Shareholders holding via the Madrid Stock Exchange receive shares and shareholders holding via the London Stock Exchange receive CDIs (CREST Depositary Receipts).

IAG also has an ADR programme in the United States that trades in the OTC market, administered by Deutsche Bank.