Cotizaciones históricas: TELEFONICA
| 31/10/2017 | 9,006 | 1,16% | 9,050 | 8,875 | |
| 30/10/2017 | 8,903 | 2,43% | 8,937 | 8,800 | |
| 27/10/2017 | 8,692 | -1,22% | 8,836 | 8,659 | |
| 26/10/2017 | 8,799 | -0,55% | 8,960 | 8,600 | |
| 25/10/2017 | 8,848 | 0,26% | 8,959 | 8,827 | |
| 24/10/2017 | 8,825 | -0,15% | 8,906 | 8,788 | |
| 23/10/2017 | 8,838 | -0,29% | 8,916 | 8,805 | |
| 20/10/2017 | 8,864 | 0,43% | 8,885 | 8,800 | |
| 19/10/2017 | 8,826 | -1,56% | 8,960 | 8,814 | |
| 18/10/2017 | 8,966 | -0,10% | 9,016 | 8,882 | |
| 17/10/2017 | 8,975 | -0,75% | 9,079 | 8,960 | |
| 16/10/2017 | 9,043 | -1,75% | 9,190 | 9,025 | |
| 13/10/2017 | 9,204 | 0,44% | 9,209 | 9,140 | |
| 12/10/2017 | 9,164 | -0,61% | 9,230 | 9,131 | |
| 11/10/2017 | 9,220 | 1,46% | 9,262 | 9,100 | |
| 09/10/2017 | 9,087 | 0,96% | 9,117 | 9,000 | |
| 06/10/2017 | 9,001 | -0,21% | 9,036 | 8,921 | |
| 05/10/2017 | 9,020 | 2,94% | 9,059 | 8,731 | |
| 04/10/2017 | 8,762 | -2,70% | 9,010 | 8,725 | |
| 03/10/2017 | 9,005 | -0,51% | 9,080 | 8,944 | |
| 02/10/2017 | 9,051 | -1,53% | 9,147 | 9,005 | |
| 29/09/2017 | 9,192 | 0,09% | 9,235 | 9,089 | |
