| CDT | | Effective interest rate | | December 31, 2017 | | ||||
| Modality | | Minimum | | Maximum | | Carrying value | | Fair value | |
| In millions of COP | |||||||||
| Less than 6 Months | | 0.10 | % | 6.96 | % | 7,536,280 | | 7,535,719 | |
| Equal to 6 months and less than 12 months | | 0.20 | % | 8.03 | % | 5,711,157 | | 5,718,827 | |
| Equal to 12 months and less than 18 months | | 0.20 | % | 9.03 | % | 8,062,290 | | 8,146,366 | |
| Equal to or greater than 18 months | | 0.01 | % | 18.29 | % | 32,651,859 | | 33,381,189 | |
| Total | | | | | | 53,961,586 | | 54,782,101 | |
| CDT | | Effective interest rate | | December 31, 2016 | | ||||
| Modality | | Minimum | | Maximum | | Carrying value | | Fair value | |
| In millions of COP | |||||||||
| Less than 6 Months | | 0.01 | % | 8.86 | % | 10,495,536 | | 10,458,936 | |
| Equal to 6 months and less than 12 months | | 0.20 | % | 9.63 | % | 7,612,216 | | 7,629,195 | |
| Equal to 12 months and less than 18 months | | 0.01 | % | 10.01 | % | 5,345,522 | | 5,391,407 | |
| Equal to or greater than 18 months | | 0.01 | % | 18.29 | % | 29,220,111 | | 29,666,246 | |
| Total | | | | | | 52,673,385 | | 53,145,784 | |