Irvine-based hedge fund manager John Brynjolfsson said he’s planning to close the fund to outside investors and become a family office.

Brynjolfsson has served as chief investment officer of Armored Wolf LLC since founding it in 2008. Previously he spent 19 years as managing director at Pacific Investment Management Co. in Newport Beach.

Brynjolfsson told Bloomberg that the firm has been affected by falling commodities and that the new family office will oversee his own wealth.

Armored Wolf now has about $250 million in assets under management.