Company: BBVXF
Filing Date: 2025-08-04
Form Type: 6-K
Source: 0001193125-25-172407
Chunk: 1

Company: BANCO BILBAO VIZCAYA ARGENTARIA, S.A.
Filing Date: 2025-08-04
Form: 6-K
Chunk 1
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 results are summarized below:

| • |     | Under the baseline scenario, BBVA’s CET1 fully loaded ratio would increase by 3.55 percentage points from December 
 31st 2024 (restated under CRR3), reaching a maximum level of 16.43% as of December 31st 2027.                      |

| • |     | Under the adverse scenario, BBVA’s CET1 fully loaded ratio would be reduced the first year by 2.18 percentage                                                                                                                                
 points from December 31st 2024 (restated under CRR3), reaching a minimum level of 10.70% as of December 31st 2025. BBVA’s fully loaded CET1 ratio recovers over the last two years of the adverse scenario, reaching a level of 11.02% as of 
 31 December 2027.                                                                                                                                                                                                                            |

Further information is available on the EBA website ( www.eba.europa.eu) Madrid, August 1st 2025 Note: The stress test exercise information is provided in the accompanying disclosure tables based on the common format provided by the EBA. The EU-stresstest exercise and its results are not a forecast of BBVA profits. This English version is a translation of the original in Spanish for information purposes only. In case of discrepancy, the Spanish original will prevail.

SIGNATURE Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

| Date: August 4, 2025 |     | Banco Bilbao Vizcaya Argentaria, S.A. |
|:---------------------|:----|:--------------------------------------|
|                      |     | By: /s/ Eduardo Ávila Zaragoza        |
|                      |     | Name: Eduardo Ávila Zaragoza          |
|                      |     | Title: Head of supervisory relations  |