 Brazils deposit insurance fund plans to double its backing for special certificates of deposit the countrys lenders sell to investors, in a move to boost the banks liquidity amid the coronavirus crisis, according to a document posted on the funds website. The move would mean that investors could buy up to 40 million reais 7.6 million of the special CDs with the guarantee they would be made whole even if the issuing bank were to fail, up from a current 20 million reais. The banks that contribute to the fund, such as Banco do Brasil SA, Itau Unibanco Holding SA and Banco Bradesco SA, will vote on the change in an online meeting on Friday, according to the document. 