Company: BCDRF
Filing Date: 2025-10-29
Form Type: 6-K
Source: 0000891478-25-000134
Chunk: 37

Company: Banco Santander, S.A.
Filing Date: 2025-10-29
Form: 6-K
Chunk 37
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 foreign currency for individuals in Argentina – In Q2 2025 we used 1,401 ARS/EUR (FX corresponding the official exchange rate) – In Q3 2025 we used 1,610 ARS/EUR (FX corresponding the official exchange rate) Note: Sep-25 data and YoY changes (loans, deposits and mutual funds in current euros). (1) The exchange rate resulting from the sale of local bonds denominated in Argentine pesos in US dollars (dual denomination peso/dollar bonds). ARGENTINA PESOARGENTINA Underlying P&L* Q3'25 Q2'25 % Q2'25 9M'25 9M'24 % 9M'24 NII 318 523 -39.2 1,257 1,812 -30.7 Net fee income 192 217 -11.8 581 315 84.2 Total revenue 509 641 -20.5 1,654 1,441 14.8 Operating expenses -209 -275 -24.0 -707 -607 16.5 Net operating income 300 366 -17.9 947 834 13.6 LLPs -172 -133 29.3 -381 -129 196.3 Attributable profit 86 134 -35.6 348 382 -8.7 (*) € mn and % change in current euros. Loans €9bn +70% Deposits €10bn +15% Mutual funds €6bn +71% Efficiency 42.7% +0.6pp CoR 6.24% +136bps • In an environment with higher activity, customers up 7% YoY, resulting in strong volumes growth across businesses • NOI up YoY driven by revenue (+15%), mainly fees (transactional) and lower hyperinflation adjustment. Profit affected by the impact from the sharp drop in interest rates on NII and higher CoR • QoQ trends significantly impacted by FX depreciation in the period RoTE post-AT1 21.4% -15.6pp

51 Appendix 2025 Investor Day targets summary Group P&L QoQ and excluding Argentina CET1 performance YTD Detail by global business and country Reconciliation of underlying results to statutory results Glossary and additional notes

52 Reconciliation of underlying results to statutory results EUR mn (1) Includes exchange differences. (2) Non-controlling interests in the statutory