Fannie Mae will soon begin offering loan-level data for its single-family mortgage-backed securities to help investors, the GSE announced last week.Fannie said it will post the data files on an enhanced version of PoolTalk, the GSE’s online disclosure application."The first release will provide at issuance loan-level data for newly issued single-family MBS,” explained Fannie. “Subsequent releases aim to enhance the at-issuance file by including additional data elements and to provide updated loan-level data on a monthly basis.” The initial information will be available at the end of the first quarter, followed by monthly reports featuring adjustable-rate mortgage statistics, fixed-rate mortgages, interest-only loans and MBS data, Fannie said.