Tiger 21's ultra-high-net-worth investors have hti a seven-year high in their private equity allocations.

Private equity allocations hit 22 percent for the first quarter of the year, up from 19 percent for the last quarter of 2012. The mark is 13 percentage points higher than 9-percent low point in the fourth quarter of 2010, according to the report by Tiger 21, which is an association of ultra-high-net-worth investors.

The fact that the percentage of portfolios in private equities is the highest it has been since Tiger 21 began tracking allocations seven years ago “is clearly part of a continuing trend over the last 12 quarters,” says Michael Sonnenfeldt, founder and chairman of Tiger 21.

Tiger 21 is made up of 200 members with total investable assets of $19 billion. They are entrepreneurs, Wall Street professionals, money managers and corporate executives who share investor information among their members.

The members may be partial to private equity because many of them made their money from starting private companies, Sonnenfeldt says.

The percent of Tiger 21 assets held in real estate decreased to 19 percent from 21 percent in the fourth quarter of 2012 and 23 percent in the third quarter.