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Capital management and fair values of financial instruments (Details - Capital requirement) - BRL (R$) R$ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
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Capital management and fair values of financial instruments |  |
Reference Equity (RE) | R$ 7,955,238 | R$ 3,077,952
Reference Equity - Tier 1 (RE tier I) | 7,955,238 | 3,077,952
Common equity Tier 1 (CET1) | 7,955,238 | 3,077,952
Risk-Weighed Assets - RWA | 17,953,263 | 9,643,109
RWA for Credit Risk by Standardized Approach - RWACPAD | 16,198,394 | 8,064,303
RWA for Market Risk- RWAMPAD | 323,581 | 476,759
RWA fpr Operational Risk By Standardized Approach - RWAOPAD | 1,431,287 | 1,102,047
Capital Requirement |  |
Minimum Main Capital Required for RWA | 807,897 | 433,940
Minimum Required Reference Equity Level I for RWA | 1,077,196 | 578,587
Minimum Required Reference Equity for RWA | 1,436,261 | 771,449
Margin on Capital Requirements |  |
Margin on Required Main Capital | 7,147,341 | 2,644,013
Margin on Required Reference Equity Level I | R$ 6,878,042 | R$ 2,499,366
Common equity tier 1 capital index (CET1/RWA) | 44.30% | 31.90%
Tier 1 capital index (RED tierI / RWA) | 44.30% | 31.90%
Basel index (RE / RWA) | 44.30% | 31.90%

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