| A3M | Atresmedia Corporación de Medios de | 5.810 | 5.710 | 5.710 | 351.3K | -0.040 | | 0.70 | |
| ACS | ACS Actividades de Construcción y | 91.35 | 90.05 | 90.65 | 212.8K | -1.50 | | 1.63 | |
| AI | Airtificial Intelligence Structures SA | 0.0825 | 0.0810 | 0.0812 | 762.0K | -0.0012 | | 1.46 | |
| AMIBX | Amundi Ibex 35 UCITS ETF Acc | 486.2 | 483.3 | 483.9 | 79 | -5.3 | | 1.08 | |
| ANE | Corporacion Acciona Energias Renovables | 21.24 | 20.68 | 20.98 | 216.5K | -0.32 | | 1.50 | |
| ARM | Arima Real Estate SOCIMI SA | 13.60 | 11.80 | 13.40 | 1.5K | -0.30 | | 2.19 | |
| ART | Arteche Lantegi Elkartea SA | 32.10 | 30.60 | 30.60 | 14.2K | -1.20 | | 3.77 | |
| ATSI | Aplicaciones y Tratamiento de Sistemas | 3.400 | 3.380 | 3.380 | 3.0K | -0.140 | | 3.98 | |