From the story here:
For the year, the Pimco Total Return Fund has had outflows of about $33.2 billion. The fund, which is managed by Pimco co-founder and co-chief investment officer Bill Gross, is still the world's largest bond fund [at $248 billion], Morningstar said.
The Vanguard Total Stock Market Index now holds the title of world's largest mutual fund with $251.1 billion, according to Morningstar.