Ginnie Mae guaranteed a total of $507.46 billion of single-family mortgage-backed securities in 2016, its biggest annual volume ever, according to a new analysis and ranking by Inside FHA/VA Lending. That was up 16.4 percent from the agency’s previous record of $435.80 billion set in 2015. (Those figures include MBS backed by FHA home-equity conversion mortgages, which are not included in the table below or in the rankings on pages 3-5.) In 2016, Ginnie guaranteed $497.03 billion of MBS backed by traditional forward mortgages, also a record, which was up 16.9 percent from the previous year. The biggest factor in last year’s record-setting production was the boom in VA lending, particularly VA refinance loans. Issuers securitized a record $203.03 billion of VA loans last year, up 33.0 percent from the 2015 total. Some 54.3 percent of those loans were refinance transactions. Total VA refi loan ... [4 charts]