Flows into hedge fund-like mutual funds, a category that attracted almost a third of the money going into actively managed funds in the past six years, have slowed this year to the weakest pace since 2008. The strategies, which include non-traditional bond funds and alternative stock funds, attracted just $1.2 billion from investors in the first five months of 2015, according to Chicago-based Morningstar Inc., down from $39 billion last year and a record $96 billion in 2013. The rapid drop in investor interest is a setback for firms such as Goldman Sachs Group Inc.