According to a study by Greenwich Associates, funds of hedge funds are beating high-net-worth individuals and family offices as a source of assets for hedge funds with more than $1 billion in assets under management. HNWIs and family offices contribute 21% of assets, while FoHFs contribute 25%. Pension funds, endowments and foundations directly investing comprise 25%. US institutional allocations to hedge funds are now at more than double the 2001 level, says Greenwich. Some 36% of US institutions invest in hedge funds.