Lenders split their interest-only loan sales almost evenly between Fannie Mae and Freddie Mac in 2005, a new Inside Alternative Mortgages analysis and ranking reveals. All together, some $86.21 billion in new prime IO loans were sold to the two government-sponsored enterprises last year. Fannie Mae held a slight edge, purchasing $43.17 billion in IO loans compared to Freddie Mac’s $43.04 billion. But Fannie’s volume dropped significantly toward the end of the year. … [One data table included]