Historically, credit unions were preceded by widespread development of credit cooperation in many countries of Europe and America. Representative organization, leading the coordination work in the field of development of both global and national credit union movement is the World Council of Credit Unions (WOCCU) established in 1971 (headquartered in Madison, USA). Some credit unions are closed, serving only their members. However, the more and more popularitywin cooperatives of open type. Over 30% of the assets of credit unions are investments in government securities, certificates of deposit of banks and savings loan associations, as well as in the parent credit unions, and other risk-free investments.