Open interest is the number of futures and options on futures contracts outstanding at the close of trading each day. Open interest can be seen as a measure of the use of risk management instruments by institutions and individuals with a long-term stake in the markets, as well as the liquidity of a contract.
Chicago Mercantile Exchange Inc. (www.cme.com) is an international marketplace that brings together buyers and sellers on its trading floors and GLOBEX®2 around-the-clock electronic trading system. CME offers futures contracts and options on futures primarily in four product areas: interest rates, stock indexes, foreign exchange and commodities. The exchange moves about $1.5 billion per day in settlement payments and manages $28.4 billion in collateral deposits
