Gundlach Hedge Fund Said to Rise 28% on Mortgage-Backed Bonds Since Start

``Gundlach's $8.5 billion DoubleLine Total Return Bond Fund, which climbed 13 percent in the past year to beat 99 percent of rivals, has 42 percent of its assets in non-agency residential MBS, 43 percent in agency-backed collateralized mortgage obligations and MBS, 9 percent in cash and about 5 percent in commercial mortgage-backed securities, according to the firm's website. ''