side-pocket
n.— «A hedge fund often invests into securities which are not quickly or easily converted into cash. Often this happens by way of a “side-pocket” where all illiquid securities are segregated.» —“United Kingdom: Hedge Funds And The Definition Challenge – Part 2″ by Thomas Bullman Mondaq (London, United Kingdom) July 28, 2008. (source: Double-Tongued Dictionary)