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Marketable securities | 12 Months Ended
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Dec. 31, 2022
Marketable securities |
Marketable securities | 9 Marketable securities a. Composition
| Credit Risk |  | December 31, 2022 |  |  | December 31, 2021 |  |
Financial bills (LF) | AAA |  | - |  |  | 1,640 |  |
Financial treasury bills (LFT) | AAA |  | - |  |  | 164,709 |  |
Private investment fund | AAA |  | 31,842 |  |  | - |  |
Private investment fund | AA |  | 348,672 |  |  | - |  |
|  |  | 380,514 |  |  | 166,349 |  |
The average gross yield of securities is based on 104% CDI on December 31, 202 2 (101% CDI on December 31, 202 1).

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