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Expected Credit Losses on Financial Assets and Reconciliation of carrying amount
12 Months Ended
Dec. 31, 2025
Disclosure of fair value measurement of assets [abstract]  
Expected Credit Losses on Financial Assets and Reconciliation of carrying amount
13 Expected Credit Losses on Financial Assets and Reconciliation of carrying amount
a)    Reconciliation of carrying amount of Financial Assets
It is presented below the reconciliation of gross carrying amount of financial assets through other comprehensive income and financial assets measured at amortized cost – that have their ECLs (Expected Credit Losses) measured using the three-stage model and the low credit risk simplification.
Stage 1Balance at December 31, 2024Acquisition / (Settlements)Transfer to stage 2Transfer to stage 3Transfer from stage 2Transfer from stage 3Write-OffClosing balance December 31, 2025
Financial assets at fair value through other comprehensive income
Securities 53,250,910 (11,027,561)— — — — — 42,223,349 
Financial assets amortized cost
Securities2,850,108 4,585,816 (1,103)(74,197)— — — 7,360,624 
Securities purchased under resale agreements22,059,501 (4,993,837)— — — — — 17,065,664 
Loans and credit card operations26,337,288 5,949,078 (1,302,940)(538,578)1,603,609 3,171 — 32,051,628 
Total on-balance exposures104,497,807 (5,486,504)(1,304,043)(612,775)1,603,609 3,171  98,701,265 
Off-balance exposures (credit card limits)7,473,577 293,552 (518,677)(12,458)137,723 — 7,373,720 
Total exposures111,971,384 (5,192,952)(1,822,720)(625,233)1,741,332 3,174  106,074,985 
Stage 2Balance at December 31, 2024Acquisition / (Settlements)Transfer to stage 1Transfer to stage 3Transfer from stage 1Transfer from stage 3Write-OffClosing balance December 31, 2025
Financial assets amortized cost
Securities— — — — 1,103 — — 1,103 
Loans and credit card operations2,910,045 (585,008)(1,603,609)(154,591)1,302,940 458 — 1,870,235 
Total on-balance exposures2,910,045 (585,008)(1,603,609)(154,591)1,304,043 458  1,871,338 
Off-balance exposures (credit card limits)394,416 (144,817)(137,723)(941)518,677 — 629,614 
Total exposures3,304,461 (729,825)(1,741,332)(155,532)1,822,720 460  2,500,952 
Stage 3Balance at December 31, 2024Acquisition / (Settlements)Transfer to stage 1Transfer to stage 2Transfer from stage 1Transfer from stage 2Write-OffClosing balance December 31,
2025
Financial assets amortized cost
Securities— — — — 74,197 — — 74,197 
Securities purchased under resale agreements— — — — — — — — 
Loans and credit card operations401,211 (129,631)(3,171)(458)538,578 154,591 (264,955)696,165 
Total on-balance exposures401,211 (129,631)(3,171)(458)612,775 154,591 (264,955)770,362 
Off-balance exposures (credit card limits)5,558 (5,769)(3)(2)12,458 941 — 13,183 
Total exposures406,769 (135,400)(3,174)(460)625,233 155,532 (264,955)783,545 
Consolidated StagesBalance at December 31, 2024Purchases / (Settlements)Write-OffClosing balance December 31,
2025
Financial assets at fair value through other comprehensive income
Securities 53,250,910 (11,027,561)— 42,223,349 
Financial assets amortized cost
Securities2,850,108 4,585,816 — 7,435,924 
Securities purchased under resale agreements22,059,501 (4,993,837)— 17,065,664 
Loans and credit card operations29,648,544 5,234,439 (264,955)34,618,028 
Total on-balance exposures107,809,063 (6,201,143)(264,955)101,342,965 
Off-balance exposures (credit card limits)7,873,551 142,966 — 8,016,517 
Total exposures115,682,614 (6,058,177)(264,955)109,359,482 
Stage 1Balance at December 31, 2023Acquisition / (Settlements)Transfer to stage 2Transfer to stage 3Transfer from stage 2Transfer from stage 3Write-OffClosing balance December 31, 2024
Financial assets at fair value through other comprehensive income
Securities 43,693,837 9,557,073      53,250,910 
Financial assets amortized cost
Securities6,861,493 (4,011,385)— — — — — 2,850,108 
Securities purchased under resale agreements14,891,781 7,167,720 — — — — — 22,059,501 
Loans and credit card operations26,447,368 1,597,545 (2,108,966)(309,713)710,801 253 — 26,337,288 
Total on-balance exposures91,894,479 14,310,953 (2,108,966)(309,713)710,801 253  104,497,807 
Off-balance exposures (credit card limits)8,323,897 (716,113)(300,426)(206)166,424 — 7,473,577 
Total exposures100,218,376 13,594,840 (2,409,392)(309,919)877,225 254  111,971,384 
Stage 2Balance at December 31, 2023Acquisition / (Settlements)Transfer to stage 1Transfer to stage 3Transfer from stage 1Transfer from stage 3Write-OffClosing balance December 31, 2024
Financial assets amortized cost
 Loans and credit card operations 2,202,931 (566,369)(710,801)(125,492)2,108,966 810 — 2,910,045 
Total on-balance exposures2,202,931 (566,369)(710,801)(125,492)2,108,966 810  2,910,045 
Off-balance exposures (credit card limits)583,270 (322,731)(166,424)(130)300,426 — 394,416 
Total exposures2,786,201 (889,100)(877,225)(125,622)2,409,392 815  3,304,461 
Stage 3Balance at December 31, 2023Acquisition / (Settlements)Transfer to stage 1Transfer to stage 2Transfer from stage 1Transfer from stage 2Write-OffClosing balance December 31, 2024
Financial assets amortized cost
Loans and credit card operations231,590 (80,172)(253)(810)309,713 125,492 (184,349)401,211 
Total on-balance exposures231,590 (80,172)(253)(810)309,713 125,492 (184,349)401,211 
Off-balance exposures (credit card limits)5,540 (312)(1)(5)206 130 — 5,558 
Total exposures237,130 (80,484)(254)(815)309,919 125,622 (184,349)406,769 
Consolidated StagesBalance at December 31, 2023Purchases / (Settlements)Write-OffClosing balance December 31, 2024
Financial assets at fair value through other comprehensive income
Securities 43,693,837 9,557,073 — 53,250,910 
Financial assets amortized cost
Securities6,861,493 (4,011,385)— 2,850,108 
Securities purchased under resale agreements14,891,781 7,167,720 — 22,059,501 
Loans and credit card operations28,881,889 951,004 (184,349)29,648,544 
Total on-balance exposures94,329,000 13,664,412 (184,349)107,809,063 
Off-balance exposures (credit card limits)8,912,707 (1,039,156)— 7,873,551 
Total exposures103,241,707 12,625,256 (184,349)115,682,614 
The following table presents the gross carrying amount of financial assets measured at amortized cost, which have their ECLs measured using the simplified approach:
Gross Carrying Amount20252024
Securities trading and intermediation6,446,868 6,635,969 
Accounts receivable1,489,842 854,828 
Other financial assets16,933,883 13,257,189 
Total24,870,593 20,747,986 
b)    Expected credit loss
The table below presents the changes in ECLs, measured according to the three-stage model, for assets classified as financial assets through other comprehensive income and financial assets measured at amortized cost in the period ended December 31, 2025 and December 31, 2024, segregated by stages:
Stage 1Balance at December 31, 2024Acquisition / (Settlements)Transfer to stage 2Transfer to stage 3Transfer from stage 2Transfer from stage 3Write-OffClosing balance December 31,
2025
Financial assets at fair value through other comprehensive income
Securities 15,622 (15,622)— — — — — — 
Financial assets amortized cost
Securities13,962 15,030 (17)(12,250)— — — 16,725 
Securities purchased under resale agreements2,364 201 — — — — — 2,565 
Loans and credit card operations79,029 317,847 (27,310)(177,848)7,117 72 — 198,907 
Total on-balance exposures110,977 317,456 (27,327)(190,098)7,117 72  218,197 
Off-balance exposures (credit card limits)11,264 (507)(1,375)(4,243)202 — — 5,341 
Total exposures122,241 316,949 (28,702)(194,341)7,319 72  223,538 
Stage 2Balance at December 31, 2024Acquisition / (Settlements)Transfer to stage 1Transfer to stage 3Transfer from stage 1Transfer from stage 3Write-OffClosing balance December 31, 2025
Financial assets amortized cost
Securities— — — — 17 — — 17 
Loans and credit card operations87,885 47,859 (7,117)(110,526)27,310 23 — 45,434 
Total on-balance exposures87,885 47,859 (7,117)(110,526)27,327 23  45,451 
Off-balance exposures (credit card limits)7,804 (7,707)(202)(60)1,375 — — 1,210 
Total exposures95,689 40,152 (7,319)(110,586)28,702 23  46,661 
Stage 3Balance at December 31, 2024Acquisition / (Settlements)Transfer to stage 1Transfer to stage 2Transfer from stage 1Transfer from stage 2Write-OffClosing balance December 31,
2025
Financial assets amortized cost
Securities— — — — 12,250 — — 12,250 
Securities purchased under resale agreements— — — — — — — — 
Loans and credit card operations230,080 (32,647)(72)(23)177,848 110,526 (264,955)220,757 
Total on-balance exposures230,080 (32,647)(72)(23)190,098 110,526 (264,955)233,007 
Off-balance exposures (credit card limits)4,019 (4,028)— — 4,243 60 — 4,294 
Total exposures234,099 (36,675)(72)(23)194,341 110,586 (264,955)237,301 
Consolidated StagesBalance at December 31, 2024Increase / (Reversal)Write-OffClosing balance December 31,
2025
Financial assets at fair value through other comprehensive income
Securities15,622 (15,622)— — 
Financial assets amortized cost
Securities13,962 15,030 — 28,992 
Securities purchased under resale agreements2,364 201 — 2,565 
Loans and credit card operations396,994 333,059 (264,955)465,098 
Total on-balance exposures428,942 332,668 (264,955)496,655 
Off-balance exposures (credit card limits)23,087 (12,242)— 10,845 
Total exposures452,029 320,426 (264,955)507,500 
Stage 1Balance at December 31, 2023Acquisition / (Settlements)Transfer to stage 2Transfer to stage 3Transfer from stage 2Transfer from stage 3Write-OffClosing balance December 31, 2024
Financial assets at fair value through other comprehensive income
Securities12,199 3,423 — — — — — 15,622 
Financial assets amortized cost
Securities6,072 7,890 — — — — — 13,962 
Securities purchased under resale agreements2,803 (439)— — — — — 2,364 
Loans and credit card operations54,845 227,395 (57,266)(148,947)2,872 130 — 79,029 
Total on-balance exposures75,919 238,269 (57,266)(148,947)2,872 130  110,977 
Off-balance exposures (credit card limits)8,162 8,349 (5,770)(32)555 — — 11,264 
Total exposures84,081 246,618 (63,036)(148,979)3,427 130  122,241 
Stage 2Balance at December 31, 2023Acquisition / (Settlements)Transfer to stage 1Transfer to stage 3Transfer from stage 1Transfer from stage 3Write-OffClosing balance December 31, 2024
Financial assets amortized cost
Loans and credit card operations74,696 76,541 (2,872)(117,930)57,266 184 — 87,885 
Total on-balance exposures74,696 76,541 (2,872)(117,930)57,266 184  87,885 
Off-balance exposures (credit card limits)6,203 (3,608)(555)(6)5,770 — — 7,804 
Total exposures80,899 72,933 (3,427)(117,936)63,036 184  95,689 
Stage 3Balance at December 31, 2023Acquisition / (Settlements)Transfer to stage 1Transfer to stage 2Transfer from stage 1Transfer from stage 2Write-OffClosing balance December 31, 2024
Financial assets amortized cost
Loans and credit card operations182,282 (34,416)(130)(184)148,947 117,930 (184,349)230,080 
Total on-balance exposures182,282 (34,416)(130)(184)148,947 117,930 (184,349)230,080 
Off-balance exposures (credit card limits)3,766 215 — — 32 — 4,019 
Total exposures186,048 (34,201)(130)(184)148,979 117,936 (184,349)234,099 
Consolidated StagesBalance at December 31, 2023Increase / (Reversal)Write-OffClosing balance December 31, 2024
Financial assets at fair value through other comprehensive income
Securities12,199 3,423 — 15,622 
Financial assets amortized cost
Securities6,072 7,890 — 13,962 
Securities purchased under resale agreements2,803 (439)— 2,364 
Loans and credit card operations311,823 269,520 (184,349)396,994 
Total on-balance exposures332,897 280,394 (184,349)428,942 
Off-balance exposures (credit card limits)18,131 4,956 — 23,087 
Total exposures351,028 285,350 (184,349)452,029 
The table below presents the ECLs for the financial assets measured according to simplified approach in the period ended December 31, 2025 and 2024:
Expected Credit Losses20252024
Securities trading and intermediation147,384 136,872 
Accounts receivable123,418 75,885 
Other financial assets20,891 24,192 
Total291,693 236,949 
c)    Expected credit losses segregated by products
The table below presents the expected credit losses for 2025 and 2024, segregated by products:
Expected Credit Losses20252024
Financial assets at fair value through other comprehensive income 15,622 
Securities— 15,622 
Financial assets amortized cost788,348 650,269 
Securities28,992 13,962 
Securities purchased under resale agreements2,565 2,364 
Loans and credit card operations465,098 396,994 
Securities trading and intermediation147,384 136,872 
Accounts receivable123,418 75,885 
Other financial assets20,891 24,192 
Total losses for exposures788,348 665,891 
Off-balance exposures (credit card limits)10,845 23,087 
Total exposures799,193 688,978