O Interbank Deposit Certificate (CDI) is the name given to loans that banks make to each other. This is necessary for financial institutions to close the cash register for the day with a positive balance.
The Central Bank has a determination, so that all banks close the day with more money coming in than going out. This is not always possible, so institutions take out loans to cover the difference.
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The amounts are borrowed from the banks themselves and, like all credit, it is necessary to pay an interest rate, defined by the CDI rate.
This justifies that the CDI is recognized as interest rates in the financial market.
An ordinary person cannot invest in the CDI. Despite this, banks use these rates to regulate how much some types of investment yield.
Of the different types of investment on the market, fixed-income investments can be divided into two categories: fixed-rate and post-fixed.
Understand the difference:
O CDI yield of 2019 yielded 5.9%. So, the investment that yielded 100% of the applied CDI yielded this percentage.
Check out the results of the 2019 monthly CDI:
In 2019, 5.96% were accumulated.
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