A sovereign wealth fund (SWF) is a fund owned by a state (or a political subdivision of a federal state) composed of financial assets such as stocks, bonds, property or other financial instruments. Sovereign wealth funds are entities that manage the national savings for the purposes of investment. The accumulated funds may have their origin in, or may represent, foreign currency deposits, foreign exchange reserves, gold, special drawing rights (SDRs) and International Monetary Fund (IMF) reserve position held by central banks and monetary authorities, along with other national assets such as pension investments, oil funds, or other industrial and financial holdings. These are assets of the sovereign nations which are typically held in reserves domestic and reserve foreign currencies such as the dollar, euro, pound sterling and yen. The names attributed to the management entities may include state-owned (federal, state and provincial) central banks, national monetary authorities, official investment companies, sovereign oil funds, pension funds, among others. Some countries may have more than one SWF. Also, while the United States does not have a federal sovereign wealth fund, several of its states have their own SWFs. The list does not include pension funds that do not meet the SWF criteria.