Private debt assets under management worldwide hit an industry peak of $595 billion as of June 30, the 10th consecutive year of increases, data from Preqin showed.
The June 30 total represented $224 billion in dry powder and $371 billion in unrealized value of invested assets.
Assets increased 7.1% in the first six months of 2016 from $555 billion as of Dec. 31, 2015.
The private debt sector composed of venture debt, special situations, mezzanine debt, distressed debt and direct lending strategies increased 305% as of June 30 from $149 billion as of Dec. 31, 2006, according to industry researcher Preqin's latest data released Wednesday.
Institutions accounted for 61% of private debt investors, with endowments and foundations representing 22% of the total number, followed by private pension funds, 16%; public pension funds, 14%; and insurance companies, 9%.