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DEBT INSTRUMENTS AT FAIR VALUE THROUGH OTHER COMPREHENSIVE INCOME (Tables) | 12 Months Ended
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Dec. 31, 2018
Debt Instruments At Fair Value Through Other Comprehensive Income |
Schedule of debt instrument | As of December 31, 2018 detail of debt instruments is as follows:
| As of December 31,
| 2018 |  | 2017
| MCh$ |  | MCh$
Chilean central bank and government securities |  |  |
Chilean central bank bonds | 657,096 |  | -
Chilean central bank notes | 56,719 |  | -
Other Chilean central bank and government securities | 1,207,221 |  | -
Subtotal | 1,921,036 |  | -
of which sold under repurchase agreement | 16,109 |  | -
Other Chilean securities |  |  |
Time deposits in Chilean financial institutions | 2,693 |  | -
Mortgage finance bonds of Chilean financial institutions | 19,227 |  | -
Other instruments issued in the country | 2,907 |  | -
Subtotal | 24,827 |  | -
of which sold under repurchase agreement | 32,436 |  | -
Foreign financial securities |  |  |
Foreign Central Banks and Government securities | 280,622 |  | -
Other foreign financial securities | 167,838 |  | -
Subtotal | 448,460 |  | -
of which sold under repurchase agreement | - |  | -
Total | 2,394,323 |  | -
Schedule of changes in the fair value and the corresponding ECL | An analysis of changes in the fair value and the corresponding ECL is as follows:
| Stage1 | Stage2 | Stage3 | TOTAL
| Collective | Collective | Collective
Gross carrying amount at January 1, 2018 | 2,574,546 | - | - | 2,574,546
New assets purchased | 5,037,857 | - | - | 5,037,857
Transfers to stage 1 | - | - | - | -
Transfers to stage 2 | - | - | - | -
Transfers to stage 3 | - | - | - | -
Assets derecognised or matured (excluding write offs) | (5,604,114) | - | - | (5,604,114)
Changes due to modifications not derecognised | - | - | - | -
Writte-off | - | - | - | -
Foreign Exchange adjustments | 386,034 | - | - | 386,034
At 31 December 2018 | 2,394,323 | - | - | 2,394,323
| Stage1 | Stage2 | Stage3 | TOTAL
| Collective | Collective | Collective
ECL at January 1, 2018 | 324 | - | - | 324
New assets purchased | 634 | - | - | 634
Transfers to stage 1 | - | - | - | -
Transfers to stage 2 | - | - | - | -
Transfers to stage 3 | - | - | - | -
Assets derecognised or matured (excluding write offs) | (705) | - | - | (705)
Changes due to modifications not derecognised | - | - | - | -
Writte-off | - | - | - | -
Foreign Exchange adjustments | 5 | - | - | 5
At 31 December 2018 | 258 | - | - | 258
Schedule of available for sale investments |
| As of December 31,
| 2018 |  | 2017
| MCh$ |  | MCh$
Chilean central bank and government securities |  |  |
Chilean central bank bonds | - |  | 816,331
Chilean central bank notes | - |  | 330,952
Other Chilean central bank and government securities | - |  | 1,115,518
Subtotal | - |  | 2,262,801
Other Chilean securities |  |  |
Time deposits in Chilean financial institutions | - |  | 2,361
Mortgage finance bonds of Chilean financial institutions | - |  | 22,312
Other instruments issued in the country | - |  | 3,000
Subtotal | - |  | 27,673
Foreign financial securities |  |  |
Foreign Central Banks and Government securities | - |  | 132,822
Other foreign financial securities | - |  | 151,250
Subtotal | - |  | 284,072
Total | - |  | 2,574,546
Schedule of gross profits and losses realized on the sale of available for sale investments | Gross profits and losses realized on the sale of available for sale investments as of December 31, 2018 is as follows:
|  | MCh$
Sale of available for sale investments generating realized profits |  | 3,505,266
Realized profits |  | 5,286
Sale of available for sale investments generating realized losses |  | 709,371
Realized losses |  | 6,788
Gross profits and losses realized on the sale of available for sale investments as of December 31, 2018, 2017 and 2016, are as follows:
| For the years ended December 31,
|  | 2017 |  | 2016
|  | MCh$ |  | MCh$
Sale of available for sale investments generating realized profits |  | 6,469,344 |  | 6,522,549
Realized profits |  | 4,867 |  | 12,333
Sale of available for sale investments generating realized losses |  | 466,732 |  | 346,906
Realized losses |  | 3 |  | 132
Schedule of available for sale investments cumulative unrealized profit and loss | The following charts show the available for sale investments cumulative unrealized profit and loss, as of December 31, 2017:
| Less than 12 months |  | More than 12 months |  | Total
| Acquisition cost | Fair value | Unrealized profit | Unrealized loss |  | Acquisition cost | Fair value | Unrealized profit | Unrealized loss |  | Acquisition cost | Fair value | Unrealized profit | Unrealized loss
| MCh$ | MCh$ | MCh$ | MCh$ |  | MCh$ | MCh$ | MCh$ | MCh$ |  | MCh$ | MCh$ | MCh$ | MCh$
Chilean central bank and government securities |  |  |  |  |  |  |  |  |  |  |  |  |  |
Chilean central bank Bonds | 816,164 | 816,331 | 5,513 | (5,346) |  | - | - | - | - |  | 816,164 | 816,331 | 5,513 | (5,346)
Chilean central bank notes | 330,923 | 330,952 | 30 | (1) |  | - | - | - | - |  | 330,923 | 330,952 | 30 | (1)
Other Chilean central bank and government securities | 1,117,447 | 1,115,518 | 2,960 | (4,888) |  | - | - | - | - |  | 1,117,447 | 1,115,518 | 2,960 | (4,888)
Subtotal | 2,264,534 | 2,262,801 | 8,503 | (10,235) |  | - | - | - | - |  | 2,264,534 | 2,262,801 | 8,503 | (10,235)
Other Chilean securities |  |  |  |  |  |  |  |  |  |  |  |  |  |
Time deposits in Chilean financial institutions | 2,361 | 2,361 | - | - |  | - | - | - | - |  | 2,361 | 2,361 | - | -
Mortgage finance bonds of Chilean financial institutions | 21,867 | 22,312 | 445 | - |  | - | - | - | - |  | 21,867 | 22,312 | 445 | -
Chilean financial institution bonds | - | - | - | - |  | - | - | - | - |  | - | - | - | -
Chilean corporate bonds | - | - | - | - |  | - | - | - | - |  | - | - | - | -
Other Chilean securities | 220 | 3,000 | 2,780 | - |  | - | - | - | - |  | 220 | 3,000 | 2,780 | -
Subtotal | 24,448 | 27,673 | 3,225 | - |  | - | - | - | - |  | 24,448 | 27,673 | 3,225 | -
Foreign financial securities |  |  |  |  |  |  |  |  |  |  |  |  |  |
Foreign central banks and government securities | 133,301 | 132,822 | 847 | (1,326) |  | - | - | - | - |  | 133,301 | 132,822 | 847 | (1,326)
Other foreign financial securities | 150,408 | 151,250 | 1,097 | (256) |  | - | - | - | - |  | 150,408 | 151,250 | 1,097 | (256)
Subtotal | 283,709 | 284,072 | 1,944 | (1,582) |  | - | - | - | - |  | 283,709 | 284,072 | 1,944 | (1,582)
Total | 2,572,691 | 2,574,546 | 13,672 | (11,817) |  | - | - | - | - |  | 2,572,691 | 2,574,546 | 13,672 | (11,817)

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