Boosted by the growing popularity of interest-only and negative amortization product, the volume of ARMs funneled into the MBS market hit a record $982.00 billion last year, according to a new Inside MBS & ABS analysis. That represented a 36.0 percent increase in volume from the year before, and easily eclipsed the previous record of $721.89 billion set in 2004. More remarkable, ARMs accounted for a record 45.6 percent of all loans securitized in the… [Two data tables included]