The Federal Deposit Insurance Corp (FDIC). is looking for buyers for the securities portfolios of Silicon Valley Bank and Signature Bank, according to Reuters.

The agency has retained advisors to sell the portfolios because the new owners of the failed banks – First Citizens Bancshares, in the case of Silicon Valley Bank and New York Community Bancorp, in the case of Signature Bank – rejected the holdings, which are composed of low-yielding assets such as US Treasurys, citing anonymous people familiar with the matter.

Given that interest rates are currently much higher, the acquirers would have had to realize losses on the assets.

SVB’s securities portfolio has a face value of about $90 billion and Signature Bank’s portfolio has a face value of about $26 billion, Reuters writes, citing regulatory filings and statements by government officials.

The FDIC estimates that the sale of SVB will cost the FDIC, maintained through levies on all US banks that are members of the FDIC’s deposit insurance program, $20 billion, while the sale of Signature Bank will cost $2.5 billion.

It’s unclear what the sale of the portfolios will cost the deposit fund.

The FDIC recently hired Newmark Group Inc to sell about $60 billion of Signature Bank’s loans it retained.