EN
Open pension funds have existed on the Polish financial market since 1999. They are institutions which create this market by investing part of their members’ superannuation. So, it is difficult to overestimate their significance from a social point of view. Authors have presented results of quantitative investigations of the share of pension funds in this market from 2001 to 2012. Main attention is concentrated on WSE because pension funds invest in stocks and bonds (government, municipal etc.) listed on the Polish ex-change and these securities are the principal components of their portfolios.