Net assets in the three months ended June 30 came in at $523 billion, down 3% from the previous quarter, the fund said.

"Financial markets experienced the most challenging first six months of the year in the last half century," Chief Executive Officer John Graham said, adding that the fund continued to expect market turbulence and uncertain investment environment to persist through the fiscal year.

(Reporting by Niket Nishant in Bengaluru; Editing by Shailesh Kuber)