"More than 27,000 of the largest corporate 401(k) plans in the country had over $80 billion in the [PIMCO] Total Return Fund at the end of 2013 ... The roster included Wal-Mart's $20.6 billion plan, the largest in the country by participants, as well as Raytheon's and Verizon's.... There is no data on how many plans have replaced PIMCO Total Return for multiple managers or team managed funds, but advisers who consult retirement plans with tens of billions of dollars in assets told Reuters they are doing so."